Selectively Permeable Membrane Patents (Class 204/415)
  • Patent number: 11327040
    Abstract: Molybdenum oxide is doped with vanadium, nobidium, tantalum or titanium to form a stable M5O14 theta phase crystal structure as a vapor sensitive material for detecting vapors of volatile organic compounds. That material is used between electrodes connected to a measuring device to measure a change in an electrical quality in the presence of a vapor of a volatile organic compound. Concentration of the vapor is measured to low part per million ranges.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: May 10, 2022
    Assignee: Alphasense Ltd.
    Inventors: Patrick T. Moseley, Peter Smith, John Saffell
  • Patent number: 11327044
    Abstract: An electrochemical sensor (1, 101) has a sensor element (15, 115) with a measuring surface (8, 108) that faces a measuring medium (5) during use. The sensor element has a planar measuring element (2, 102). A sensor shaft (4, 104) has an aperture (13, 113) with a bezel (11, 111) at an end which, during use, faces the measuring medium. The sensor element is installed in the area of the aperture. The electrochemical sensor also has an annular sealing element (9, 109), which is arranged between the sensor element and the bezel. An insulator element (10, 110) is firmly and inseparably connected to the measuring element, exposing or recessing the measuring surface. Thus, the sealing element, which protects the electrochemical sensor against the ingress of measuring medium, is arranged sealingly between the insulator element and the bezel.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: May 10, 2022
    Assignee: Mettler-Toledo GmbH
    Inventors: Andreas Rutz, Juan Limon Petersen
  • Patent number: 11268928
    Abstract: Apparatus and associated methods relate to a compact gas sensor (CGS) including a housing with a central stepped cavity with one or more first lead contact(s) forming a portion of a base plane in a bottom of the cavity and one or more second lead contact(s) forming a portion of a stepped plane higher than the base plane, the cavity sized to receive a chemically based stack of material made up of a bottom diffusion electrode layer, a middle electrolyte gel layer, and a top diffusion electrode layer. The bottom diffusion electrode layer is in electrical contact with the first lead contact(s). The top diffusion electrode layer electrically couples to the second lead contact(s) via an overlaying micro electromechanical system (MEMS) element layer with conductive coating. In an illustrative example, the CGS may provide gas sensing in small spaces.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: March 8, 2022
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Richard Wade, Keith Francis Edwin Pratt, Robert Higashi, Scott Edward Beck, Vijayakumar S, Cristian Diaconu
  • Patent number: 11266954
    Abstract: Embodiments relate generally to a filter (110), for example, for attachment onto a gas detector device or a gas sensor, and attempt to improve the efficiency and service life of the filter (110). Embodiments typically comprise a dustproof membrane (114) and a waterproof membrane (113). Some embodiments may also comprise a splash-proof cap (130) and/or features to reduce negative pressure on the filter (110).
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: March 8, 2022
    Assignee: Honeywell International Inc.
    Inventors: Qidao Lin, Feng Liang, Yong Tang
  • Patent number: 11219387
    Abstract: Provided herein are devices (e.g., electrochemical sensors useful for detecting volatile organic compounds associated with certain diseases or conditions and/or diagnosing certain diseases or conditions). The devices comprise one or more layers of metal on a layer of silicon, and a layer of molecularly imprinted polymer in electrical communication with the one or more layers of metal, wherein the one or more layers of metal are each independently selected from a layer of chromium, platinum, gold, nickel, cobalt, tungsten, rhodium, iridium, silver, tin, titanium or tantalum, or an alloy thereof. Methods of using the devices (e.g., to detect one or more analytes in a sample, to detect and/or diagnose a disease or condition in a subject), and methods of making the devices are also provided.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: January 11, 2022
    Assignee: Northeastern University
    Inventors: Nian Xiang Sun, Shadi Emam, Adam Keith Ekenseair
  • Patent number: 11209417
    Abstract: Breath sensor apparatus and methods of use are described herein where a flow control apparatus may generally comprise a sampling chamber defining a volume and one or more openings into the sampling chamber, at least one sensor in fluid communication with the sampling chamber, wherein the at least one sensor is configured to detect the analyte. The sampling chamber may also be configured to receive the breath sample into the sampling chamber and into contact with the at least one sensor via diffusion into the sampling chamber.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: December 28, 2021
    Assignee: Carrot, Inc.
    Inventors: Allen Jameson, David S. Utley
  • Patent number: 11204346
    Abstract: A gas sensor comprises a support structure with a cavity (6), a sensing element (1) sensitive to a gas and arranged in the cavity (6), and a filter (3) spanning the cavity (6). The filter (3) is a size selective filter.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: December 21, 2021
    Assignee: SENSIRION AG
    Inventors: Pernilla Andersson, Roman Pavelko, Aline Rotzetter
  • Patent number: 11085896
    Abstract: A gas sensor includes know types of electrodes such has sensing electrodes, counter electrodes or reference electrodes to sense the presence of a predetermined gas. In addition, at least one diagnostic electrode is carried in the sensor. The diagnostic electrode implements at least one diagnostic function without substantially impairing the gas sensing function. The diagnostic electrode is immersed in sensor electrolyte.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: August 10, 2021
    Assignee: LIFE SAFETY DISTRIBUTION GMBH
    Inventors: Keith Francis Edwin Pratt, Martin G. Jones, John Chapples, Lei Xiao
  • Patent number: 11067563
    Abstract: A plenum assembly configured for electrophysiology assays, such as patch clamp techniques, includes one or more ground electrode assemblies. The ground electrode assemblies are individually removable from a plenum base of the plenum assembly in a non-destructive manner, and may be reinstalled in the plenum base in a manner that reestablishes electrical contact with ground circuitry without requiring soldering or other additional steps. A rejuvenating apparatus is provided for rejuvenating one or more ground electrode assemblies removed from the plenum base.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: July 20, 2021
    Assignee: Molecular Devices, LLC
    Inventors: Thomas L. Smith, Edward Verdonk
  • Patent number: 11035822
    Abstract: A sensor and a corresponding method measure the pH of a solution without using an external reference electrode. The pH sensor has at least one functionalized electrode with an attached first redox active molecule and an attached second redox active molecule that are differently sensitive to pH and oxidize/reduce at different voltages, and a difference in peaks of a response of the two molecules to applied electrical parameter is measured and correlated to a particular pH.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: June 15, 2021
    Assignee: ROBERT BOSCH GMBH
    Inventors: Patrick Staley, Nadezda Fomina, Murat Deliomeroglu, Christopher Johnson, Young Shik Shin
  • Patent number: 11013434
    Abstract: A physiologic sensor for measuring the partial pressure of carbon dioxide is provided. The sensor includes a generally C-shaped in cross-section sensor cover, the sensor cover defining an opening on an underside thereof; a membrane body housed within the opening, the membrane comprising an amorphous fluoroplastic, the membrane including a first end and a second end and defines a chamber therewithin; a sensor body for coupling the membrane to the sensor cover; two or more electrodes positioned within the membrane chamber; and a substantially electrolyte-free liquid contained within the membrane chamber and in contact with the two or more electrodes.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: May 25, 2021
    Assignee: EXOSTAT MEDICAL, INC.
    Inventors: Irvin T. Pierskalla, Kent R. Winger
  • Patent number: 10983084
    Abstract: This invention is to provide an electrode device whose manufacturing cost is suppressed and whose surface is difficult to be polluted. The electrode device comprises an internal electrode, an enclosure that houses the internal electrode, an internal solution that is housed in the enclosure and that electrically communicates a liquid junction formed in the enclosure or a response glass that forms a part or all of the enclosure with the internal electrode, and an antifouling mechanism that has a light source to irradiate ultraviolet rays on a sample contact surface of the enclosure as being a surface that makes contact with a sample and that prevents the sample contact surface of the enclosure from being polluted, and the light source is directly or indirectly mounted on an outside of the enclosure, or the light source is housed inside of the enclosure.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: April 20, 2021
    Assignee: HORIBA Advanced Techno, Co., Ltd.
    Inventors: Yuji Nishio, Katsunobu Ehara
  • Patent number: 10944111
    Abstract: An electrode for lithium ion secondary batteries, including a porous glass particle and a positive electrode active material or negative electrode active material that is capable of occluding and releasing lithium ions wherein the pore volume of the porous glass particle is from 0.1 ml/g to 2 ml/g, is used to provide a lithium ion secondary battery excellent in a charge rate property.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: March 9, 2021
    Assignee: NEC CORPORATION
    Inventors: Katsumi Maeda, Noriyuki Tamura, Mika Shiba
  • Patent number: 10908116
    Abstract: In a circular cross section obtained by cutting a protector along a plane which is orthogonal to an axial direction and passes through gas introduction holes, the gas introduction holes are arranged asymmetrically in the circumferential direction of a circumferential wall of the protector. When the circular cross section is bisected into first and second divisional regions by a straight line which passes through the center of the circular cross section and does not pass through any gas introduction holes, the total opening area of gas introduction holes located in the first divisional region is smaller than the total opening area of gas introduction holes located in the second divisional region.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: February 2, 2021
    Assignee: NGK Spark Plug Co., LTD.
    Inventors: Tomoki Fujii, Takehiro Oba
  • Patent number: 10907999
    Abstract: To provide a gas sensor device having improved measurement accuracy. This gas sensor device is provided with: a sensor element that detects the concentration of a gas by means of heat dissipation from a heat generating body; and a cover with which the sensor element is covered. The cover has a plurality of ventilation sections, which are disposed by being separated with each other in the direction perpendicular to the flowing direction of the gas, and the sensor element is disposed between the ventilation sections.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: February 2, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroshi Nakano, Masahiro Matsumoto, Yasuo Onose, Yoshimitsu Yanagawa
  • Patent number: 10876993
    Abstract: Provided is a gas sensor which is capable of preferably sensing an ammonia gas, and has excellent durability. A mixed-potential gas sensor includes a sensor element composed of an oxygen-ion conductive solid electrolyte, and a heater provided inside the element. The sensor element includes on a surface thereof a sensing electrode formed of a cermet including Pt, Au and an oxygen-ion conductive solid electrolyte, and also includes a reference electrode formed of a cermet of Pt and an oxygen-ion conductive solid electrolyte, and a porous electrode protective layer whose porosity is 5 to 40% covering at least the sensing electrode. The Au abundance ratio in a surface of noble metal particles forming the sensing electrode is 0.4 or more. The concentration of an ammonia gas is determined on the basis of a potential difference occurring between the sensing electrode and the reference electrode when the sensor element is disposed in a measurement gas and heated to 400° C. to 800° C.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: December 29, 2020
    Assignee: NGK INSULATORS, LTD.
    Inventors: Taku Okamoto, Takayuki Sakurai, Noriko Hirata, Yuki Nakayama
  • Patent number: 10845324
    Abstract: Electrochemical sensors for the detection of select analytes are provided. The electrochemical sensors include a barrier layer having a substantially uniformed thickness disposed between a sensing layer and an ion exchange membrane. The barrier layer includes a two-dimensional nanomaterial. The barrier layer has a thickness of less than or equal to about 1 nm. The sensing layer has a thickness of less than or equal to about 10 nm. The sensing layer generates ions in response to select analytes. The barrier layer allows the generation ions to pass therethrough and travel into the ion exchange membrane. The barrier layer acts as a physical barrier to contaminants and larger molecules.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: November 24, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Girish Kulkarni, Xudong Fan, Zhaohui Zhong, Ayush Pandey, Wenzhe Zang
  • Patent number: 10794848
    Abstract: A gas sensor includes a first electrode having a first main surface and a second main surface opposite to the first main surface; a second electrode having a third main surface facing the second main surface and a fourth main surface opposite to the third main surface; a metal oxide layer disposed between the first electrode and the second electrode, and being in contact with the second main surface and the third main surface; and an insulating film covering at least a part of the first electrode, a part of the second electrode, and at least a part of the metal oxide layer. At least a part of the fourth main surface is exposed to gas which contains a gas molecule including a hydrogen atom. A resistance value of the metal oxide layer decreases when the second electrode is in contact with the gas molecule.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 6, 2020
    Assignee: PANASONIC SEMICONDUCTOR SOLUTIONS CO., LTD.
    Inventors: Kazunari Homma, Zhiqiang Wei
  • Patent number: 10732144
    Abstract: An electrochemical gas sensor (10) includes a housing (20) and with at least one electrode (21, 22). The housing (20) has a gas inlet (23). An at least strongly acidic, liquid electrolyte (30) is present in the gas sensor (10). The electrolyte (30) partly wets the electrode (21, 22). Provisions are made in such a gas sensor (10) for the electrolyte (30) to contain an additive that contains at least one surfactant. An electrolyte (30) is also provided for a gas sensor (10), which electrolyte (30) contains at least one surfactant as an additive.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: August 4, 2020
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Petra Glas, Peter Tschuncky, Marie-Isabell Mattern-Frühwald, Susanne Kassa, Christoph Bernstein
  • Patent number: 10732141
    Abstract: An electrochemical cell for sensing gas has added mechanical support for the working electrode to prevent flexure of the working electrode due to pressure differentials. The added mechanical support includes: 1) affixing a larger area of the working electrode to the body of the cell; 2) a gas vent to a cavity of the body to equalize pressures; 3) a rigid electrolyte layer abutting a back surface of the working electrode; 4) infusing an adhesive deep into sides of the porous working electrode to enhance rigidity; 5) supporting opposing surfaces of the working electrode with the rigid package body; and 6) other techniques to make the working electrode more rigid. A bias circuit is also described that uses a controllable current source, an integrator of the varying current, and a feedback circuit for supplying a voltage to the counter electrode and a bias voltage to the reference electrode.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: August 4, 2020
    Assignee: InSyte Systems
    Inventors: Jim Chih-Min Cheng, Eric Paul Lee, Jerome Chandra Bhat
  • Patent number: 10624747
    Abstract: A method produces a multilayer film for covering a bone defect site. The film comprises at least one substantially completely bioresorbable covering layer, and the at least one covering layer is placed on a thermally deformable and substantially completely bioresorbable molding layer. The at least one covering layer is connected to the molding layer thermally and/or mechanically, preferably in a compressed manner. Mandrel-like protrusions are arranged on the molding layer, and the protrusions are pressed into the at least one covering layer by the placement of the at least one covering layer on the molding layer and/or pushed through the at least one covering layer. Alternatively or in addition to the protrusions, substantially completely bioresorbable connection devices, preferably rivets or pins, are pushed through the molding layer and the at least one covering layer.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 21, 2020
    Inventor: Dietmar Sonnleitner
  • Patent number: 10551396
    Abstract: A method of operating a sensor system including at least one sensor for detecting an analyte gas and a control system includes electronically interrogating the sensor to determine the operational status thereof and upon determining that the operational status is non-conforming based upon one or more predetermined thresholds, the control system initiating an automated calibration of the sensor with the analyte gas or a simulant gas.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: February 4, 2020
    Assignee: MSA TECHNOLOGY, LLC
    Inventors: Towner Bennett Scheffler, Michael Alvin Brown, Andrew E. Nalepa, Brian Keith Davis
  • Patent number: 10551338
    Abstract: The subject matter of the present disclosure generally relates to systems and methods for sensing analytes with a high selectivity and low responses to interferences in an environment. In one embodiment, a sensor was developed which comprises a sensor electrode, a coupling element operationally coupled to a discrete segment of the sensor electrode, and an activation material in operational contact with the coupling element and configured to induce an irreversible sensor response for a selected sensing application.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: February 4, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Radislav Alexandrovich Potyrailo, Zhexiong Tang, Igor Tokarev, Binil Itty Ipe Kandapallil
  • Patent number: 10525226
    Abstract: The principles and embodiments of the present invention relate to methods and systems for safely providing NO to a recipient for inhalation therapy. There are many potential safety issues that may arise from using a reactor cartridge that converts NO2 to NO, including exhaustion of consumable reactants of the cartridge reactor. Accordingly, various embodiments of the present invention provide systems and methods of determining the remaining useful life of a NO2-to-NO reactor cartridge and/or a break-through of NO2, and providing an indication of the remaining useful life and/or break-through.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: January 7, 2020
    Assignee: Mallinckrodt Hospital Products IP Limited
    Inventors: Jaron Acker, Muhammad Asif, Craig Flanagan, Douglas Alan Greene, Sarah Jayne Ridley, Frank Kenneth Schweighardt, Lien-Lung Sheu
  • Patent number: 10520465
    Abstract: A gas detection device including a vessel, wherein the vessel contains an aqueous solution, and a sensing element operably coupled to the vessel, wherein the sensing element is not in direct contact with the aqueous solution.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: December 31, 2019
    Assignee: CARRIER CORPORATION
    Inventors: Michael L. Perry, Robert M. Darling
  • Patent number: 10481060
    Abstract: A density sensor to measure the density of a gas having a density ranging from 30 gram per cubic meter to 150 kilogram per cubic meter and a working pressure ranging from 0 to 100 bar. The density sensor includes a resonator housing, a membrane, an actuating/detecting module mechanically coupled to the membrane, and a resonating element arranged to be immersed in the gas, the resonating element being mechanically coupled to the membrane by a pedestal. The resonating element is a resonating disk having a thickness ranging from 25 ?m to 200 ?m and a diameter ranging from 4 mm to 12 mm. The resonating disk extends parallelly to the membrane or being angled relatively to the membrane and is coupled by its center to the pedestal. The resonating disk is made of a metal chosen among the group comprising stainless steel, nickel-iron alloy and Molybdenum.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: November 19, 2019
    Assignee: WIKA TECH
    Inventors: Francois Chaudoreille, Guillaume Granier, Lucia Jimenez
  • Patent number: 10479972
    Abstract: One aspect of the invention provides a sample chamber for use in the dynamic imaging of cells. In one embodiment, the chamber includes a holding mechanism for positioning the cells against a viewing window in the chamber. A housing is positioned against the viewing window to define the closed chamber. The housing may include access ports allowing for the perfusion of fluid through the chamber, the control of the internal temperature of the chamber and the micromanipulation and electrical stimulation of the cells.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: November 19, 2019
    Assignees: RUSH UNIVERSITY MEDICAL CENTER, LOYOLA UNIVERSITY CHICAGO
    Inventors: Eduardo Rios, Peter Caron, Pieter deTombe, Carlo Manno
  • Patent number: 10344388
    Abstract: According to one embodiment of a CO2 reduction catalyst of the present invention, a conductive material is immersed in an aqueous solution containing a gold source, and a current or a potential is applied, whereby a highly active CO2 reduction catalyst can be formed in a wide range portion on a surface of the conductive material. According to one embodiment of a CO2 reduction catalyst of the present invention, in a CO2 reduction reaction apparatus including a CO2 reduction electrode having the CO2 reduction catalyst, CO2 is reduced.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: July 9, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yoshitsune Sugano, Ryota Kitagawa, Akihiko Ono, Jun Tamura, Yuki Kudo, Masakazu Yamagiwa, Eishi Tsutsumi, Satoshi Mikoshiba, Asahi Motoshige, Arisa Yamada
  • Patent number: 10330627
    Abstract: Biosensors and biosensor systems are disclosed that have manganese (III) oxide (Mn2O3)-based electrodes that can attenuate interference of a detection signal resulting from an analyte-relevant reaction caused by undesired reaction of interferents in a sample. Methods are also disclosed for making and using the same.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: June 25, 2019
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Karl-Heinz Koelker, Arnulf Staib
  • Patent number: 9969947
    Abstract: A method of optimizing system parameters in a crude unit to reduce corrosion and corrosion byproduct deposition in the crude unit is disclosed and claimed. The method includes measuring or predicting properties associated with the system parameters and using an automated controller to analyze the properties to cause adjustments in the chemical program to optimize the system parameters. Adjusting the system parameters effectively controls corrosion in the crude unit by reducing the corrosiveness of a fluid in the process stream and/or by protecting the system from a potentially corrosive substance. System parameter sensing probes are arranged at one or more locations in the process stream to allow accurate monitoring of the system parameters in the crude unit.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 15, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Glenn L. Scattergood, Sam Ferguson
  • Patent number: 9966157
    Abstract: The invention related to a complexing system for extracting a radionuclide from a waste water solution including calix[n]arene groups on the surface of a porous conducting material.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: May 8, 2018
    Assignee: Commissariat a L'Energie Atomique et aux Energies Alternatives
    Inventors: Ekatarina Shilova, Pascal Viel, Vincent Huc, Yves Barre
  • Patent number: 9951424
    Abstract: A plating method includes: providing a work piece which is metal or non-metal; forming a printed layer on a predetermined region of a surface of the work piece through printing electrical conductive material on the predetermined region; forming a plated layer through plating the printed layer and the surface of the work piece.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: April 24, 2018
    Assignee: HOEY CO., LTD.
    Inventor: Joseph Huang
  • Patent number: 9903817
    Abstract: The dissolved gas sensor system includes a dissolved gas sensor partially located within a housing and partially extending through the housing lid. The sensor is created by affixing a selectively permeable membrane to a dissolved gas transducer with a waterproof polymer. This forms a membrane cavity between the membrane, polymer, and transducer. The membrane cavity allows the transducer to detect whatever gas or gases can pass through the selectively permeable membrane. These readings pass to a controller located within the housing body that can receive and process data, and store the data in a removable data storage for later retrieval by a user. The controller can also regulate overall power consumption of the system to increase the operating life of the system.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: February 27, 2018
    Inventors: Karl B. Haase, Ward E. Sanford
  • Patent number: 9893652
    Abstract: An electricity-generating element unit including a plurality of electricity-generating elements, each of the plurality of electricity-generating elements including a first electrode, an intermediate layer, and a second electrode disposed with the intermediate layer being between the first electrode and the second electrode, and a coupling unit coupling the plurality of electricity-generating elements to each other, wherein when an external force is applied to at least one of the plurality of electricity-generating elements to bring the first electrode and the second electrode of the at least one of the plurality of electricity-generating elements close to each other, a distance between the first electrode and the second electrode of the electricity-generating element or each of the electricity-generating elements to which an external force is not applied is increased by the coupling unit.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: February 13, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Mizuki Otagiri, Tsuneaki Kondoh, Tomoaki Sugawara, Yuko Arizumi, Junichiro Natori, Takahiro Imai
  • Patent number: 9844328
    Abstract: Sensor devices including dissolvable tissue-piercing tips are provided. The sensor devices can be used in conjunction with dissolvable needles configured for inserting the sensor devices into a host. Hardening agents for strengthening membranes on sensor devices are also provided. Methods of using and fabricating sensor devices are also provided.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: December 19, 2017
    Assignee: DexCom, Inc.
    Inventors: Peter C. Simpson, Jennifer Blackwell, Sebastian Böhm
  • Patent number: 9804123
    Abstract: An electrochemical sensor utilizes a chemical compound which is not a macromolecule but rather is a single chemical compound of determinate structure, incorporating two redox systems which differ in their response to a species to be detected. In one form, one redox system displays a voltammetric wave which is pH dependent while another displays a voltammetric wave which is pH independent and acts as an internal reference. The sensor comprises a solid substrate, which may be carbonaceous, on which the compound is immobilized. The sensor may be incorporated into a tool to be suspended in a wellbore.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: October 31, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Valerie Lafitte, Nathan Lawrence
  • Patent number: 9784755
    Abstract: A method of operating a sensor system including at least one sensor for detecting an analyte gas and a control system includes electronically interrogating the sensor to determine the operational status thereof and upon determining that the operational status is non-conforming based upon one or more predetermined thresholds, the control system initiating an automated calibration of the sensor with the analyte gas or a simulant gas.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 10, 2017
    Assignee: MSA Technology, LLC
    Inventors: Towner B. Scheffler, Michael Brown, Andrew E. Nalepa, Brian Keith Davis
  • Patent number: 9726633
    Abstract: An electrochemical gas sensor system (100) detects the concentration of a harmful gas in a measuring environment (70). The electrochemical gas sensor system (100) contains a voltage generator (19) and an electrochemical gas sensor (1). The electrochemical gas sensor (1) has a sensor housing (2) and a gas inlet (18). A measuring electrode (3), an auxiliary electrode (5), a reference electrode (17), a first generator electrode (13) and a second generator electrode (14) are in an electrolyte liquid (11) in the sensor housing (2). A salt (28) (halide) of a halogen is dissolved in the electrolyte liquid (11). The first generator electrode (13) and the second generator electrode (14) are connected to the voltage generator (19) to form a galvanic source. The galvanic source causes the salt (28) (halide) to react to form a halogen (28?). A defined, largely stable reference voltage potential becomes established on the reference electrode (17).
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: August 8, 2017
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Frank Mett, Kerstin Lichtenfeldt, Johanna Jörn
  • Patent number: 9689833
    Abstract: A gas sensor includes known types of electrodes such as sensing electrodes, counter electrodes or reference electrodes to sense the presence of a predetermined gas. In addition, at least one diagnostic electrode is carried in the sensor. The diagnostic electrode implements at least one diagnostic function without substantially impairing the gas sensing function. The diagnostic electrode is immersed in sensor electrolyte.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: June 27, 2017
    Assignee: Life Safety Distribution AG
    Inventors: Keith Francis Edwin Pratt, Martin G. Jones, John Chapples, Lei Xiao
  • Patent number: 9625443
    Abstract: A method for measuring ammonia in a blood sample may involve positioning the blood sample in proximity with an ammonia gas sensor, generating a current with the ammonia gas sensor in response to ammonia gas released from the blood sample, and measuring the current generated by the ammonia gas sensor, using a current measurement member coupled with the ammonia gas sensor. A device for measuring an ammonia level in a blood sample may include a blood sample containment member, an ammonia gas sensor coupled with the blood sample containment member, and a current measurement member coupled with the ammonia gas sensor. The method and device may be used to measure an ammonia level in a blood sample as small as one drop of blood, or approximately 0.05 mL of blood.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: April 18, 2017
    Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Thomas Richard Veltman, Chun J. Tsai, Matthew William Kanan, Gilbert Chu
  • Patent number: 9612700
    Abstract: User interfaces and electrode assemblies are provided. A user interface includes a printed circuit board and an outer touch panel spaced from the printed circuit board. The user interface assembly further includes an electrode assembly disposed between the printed circuit board and outer touch panel. The electrode assembly includes a first conductive compressible electrode extending along a length between a first end and a second end and from the printed circuit board to the outer touch panel. The electrode assembly further includes a second conductive compressible electrode extending along a length between a first end and a second end and from the printed circuit board to the outer touch panel. The first and second electrodes are intertwined and define a gap therebetween. The gap is generally constant along the lengths of the first and second electrodes between the first ends and the second ends of the first and second electrodes.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 4, 2017
    Assignee: Haier US Appliance Solutions, Inc.
    Inventor: Tyler James Doering
  • Patent number: 9586814
    Abstract: A monochloramine microsensor includes an elongated housing defining a central axis and an open interior and having a capillary opening at one end. A semi-permeable membrane covers the capillary opening, the semi-permeable membrane allowing diffusion of chloramines there-through while preventing water from entering into the interior of the housing. A chloramine sensitive element in the form of a wire, fiber or nanotube is mounted within the housing, the chloramine sensitive element, when used in conjunction with an anode, outputs current in an amount proportional to the concentration of chloramine present in a liquid sample in which the chloramine sensitive element is immersed. The chloramine sensitive element extends along a length of the central axis to a first end adjacent to and spaced from the semi-permeable membrane. The chloramine sensitive element is a gold wire, a platinum wire, a carbon fiber or a carbon nanotube.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: March 7, 2017
    Assignee: The United States of America as represented by the Administrator of the Environmental Protection Agency
    Inventors: Jonathan G. Pressman, Woo Hyoung Lee, David G. Wahman
  • Patent number: 9494541
    Abstract: Methods and sensors for selective fluid sensing are provided. A gas dosimeter includes a housing configured with an opening to admit an analyte. The gas dosimeter also includes a multivariate sensor disposed in the housing. The sensor is configured to determine a concentration of the analyte over time. In addition, the multivariate sensor includes an irreversible sensing material. Electrical properties of the irreversible sensing material are configured to change irreversibly upon exposure to the analyte.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: November 15, 2016
    Assignee: General Electricity Company
    Inventors: Radislav Alexandrovich Potyrailo, Hubert Tunchiao Lam, Zhexiong Tang, Nandini Nagraj
  • Patent number: 9493652
    Abstract: A polymeric film composition and a non-enzymatic glucose sensor including the functional polymeric film are provided. The polymeric film composition includes polyurethane and perfluorosulfonic acid polymer.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: November 15, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., INSTITUTE FOR RESEARCH & INDUSTRY COOPERATION, PNU
    Inventors: Chulho Cho, Yoon-Bo Shim, Jaehong Kim, Suntae Jung, Seongje Cho, Jaegeol Cho
  • Patent number: 9417204
    Abstract: Matrix materials, such as sol-gels and polymers derivatives to contain a redox active material can be used to form electrodes and probes suitable for use in pH meters and other analyte sensing devices.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: August 16, 2016
    Assignee: Senova Systems, Inc.
    Inventors: Eric Lee, Mark Micklatcher, Jai Krishnamurthy
  • Patent number: 9383233
    Abstract: A sensor device is provided, which has an energy storage cell and at least one carrier substrate for at least one detector. The sensor device is characterized in that the at least one carrier substrate has at least one contact section for producing an electrically conductive and mechanical contact to the energy storage cell.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: July 5, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Christian Peters, Maxime Loidreau
  • Patent number: 9304103
    Abstract: An ion meter is calibrated by providing two ISFETS with different areas, where the two gate areas are used to calibrate the two ISFETS with respect to one another. The use of two ISFET gates that can be calibrated with respect to one another eliminates the need for an ion meter to be recalibrated before every use, and allows the ion meter to measure the concentration in the solution over an extended period of time.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: April 5, 2016
    Assignee: Sentient Technologies, Inc.
    Inventors: Mark Bain, Frederick Quincy Johnson
  • Patent number: 9291571
    Abstract: An ammonia gas detection apparatus includes an ammonia sensor that is configured to detect an ammonia gas in a gas stream and to generate a first output signal when the ammonia gas is detected in the gas stream. The ammonia sensor does not detect the ammonia gas in the gas stream when the gas stream further includes an interference gas that disrupts operation of the ammonia sensor. A discoloration gauge includes a reaction solution that changes from a first color to a second color responsive to exposure to the ammonia gas in the gas stream, regardless of the presence of the interference gas, and a detector that generates a second output signal responsive to the reaction solution changing from the first color to the second color. A communication interface outputs the first and second output signal to a host computer that detects presence of the ammonia gas.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: March 22, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sungman Kim, Jin Ha Jeong, Jongsan Kim, Ronald Myungsup Shim
  • Patent number: 9274076
    Abstract: An aspect includes a low slope electrode device, including: at least one electrode; at least one container at least partially enclosing the at least one electrode and having at least one ion sensitive region; an external buffer container having at least one separating element that separates said at least one ion sensitive region into: a first ion sensitive area separating an internal buffer solution bathing the at least one electrode and an external sample solution; and a second ion sensitive area separating the internal buffer solution bathing the at least one electrode and an external buffer solution; wherein the at least one separating element, the first ion sensitive area, and the second ion sensitive area establish a charge flow circuit. Other aspects are described and claimed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 1, 2016
    Assignee: Hach Company
    Inventor: Karl Lewis King
  • Patent number: 9209631
    Abstract: A method for charging a metal-air battery pack at the maximum possible rate while maintaining an ambient oxygen concentration below a preset concentration is provided, thereby minimizing the risks associated with generating oxygen during the charging cycle.
    Type: Grant
    Filed: September 22, 2012
    Date of Patent: December 8, 2015
    Assignee: Tesla Motors, Inc.
    Inventors: Weston Arthur Hermann, Jeffrey Brian Straubel, David G. Beck