Patents by Examiner Dennis M White
  • Patent number: 9545635
    Abstract: Provided are pipette tip trays for use in biotechnology applications. In certain embodiments, provided are pipette tip trays having one or more of the following features: (i) lacking an external hinge between the lid and the rack, and (ii) having snap plate fasteners configured to releasably secure a snap plate to a base.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: January 17, 2017
    Assignee: BIOTIX, INC.
    Inventors: Arta Motadel, Peter Paul Blaszcak
  • Patent number: 9543118
    Abstract: A nanopore structure includes an aperture extending from a first surface to a second surface of a substrate, the aperture having a wall comprising gold ions embedded in the substrate, the wall defining a first diameter; a first deoxyribonucleic acid (DNA) layer including a thiolated DNA strand covalently bonded to the embedded gold ions within the wall of the aperture; and a second DNA layer hydrogen bonded to the first DNA layer, the second DNA layer defines a substantially cylindrical nanopore that defines a second diameter within the wall of the aperture, the second DNA layer including a single-stranded DNA strand; wherein the second diameter is less than the first diameter.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: January 10, 2017
    Inventors: Yann Astier, Joshua T. Smith
  • Patent number: 9535036
    Abstract: Provided are a multiple discrimination device and a method of manufacturing the same. According to the multiple discrimination device, a three-dimensional micro ferromagnetic pattern is optimally designed and arranged to allow a magnetic force applied to a discrimination-target particle to be discriminated to be well controlled to perform discrimination well. The method employs a semiconductor processing technology, thereby precisely manufacturing and allowing mass production.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: January 3, 2017
    Inventors: Dae-Sik Lee, Jeong Won Park, Seong-Mok Cho, Moon Youn Jung
  • Patent number: 9527077
    Abstract: A disposable, point-of-care diagnostic cartridge has a base with a reaction chamber and an inlet and a fluidic channel extending therebetween. An apparatus is fixed to the base. The apparatus includes a flexible upper layer having a reservoir containing fluid therein; a flexible lower layer, and a rigid substrate sandwiched between the upper and lower layers. The upper layer is fixed to the substrate with a first adhesive having a first bond force. The lower layer has a valve member in fluid communication with a through port in the base and the base inlet. The valve member has a closed state to seal off the through port and the inlet from fluid communication and an open state to bring the through port and the inlet into fluid communication. The valve member is moveable from the closed state to the open state under a force less than the first bond force.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: December 27, 2016
    Inventor: David W. Wright
  • Patent number: 9522397
    Abstract: Devices, systems, and methods for detecting molecules of interest within a collected sample are described herein. In certain embodiments, self-contained sample analysis systems are disclosed, which include a reusable reader component, a disposable cartridge component, and a disposable sample collection component. In some embodiments, the reader component communicates with a remote computing device for the digital transmission of test protocols and test results. In various disclosed embodiments, the systems, components, and methods are configured to identify the presence, absence, and/or quantity of particular nucleic acids, proteins, or other analytes of interest, for example, in order to test for the presence of one or more pathogens or contaminants in a sample.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: December 20, 2016
    Assignee: CUE INC.
    Inventors: Ayub Khattak, Clinton Sever
  • Patent number: 9518985
    Abstract: The present invention provides a semi-quantitative lateral flow assay device and method for generating semi-quantitative data from a lateral flow assay. The device comprises a thin, porous hydrophilic substrate wherein the substrate includes a star-shaped or other geometry taken in plan view having a liquid sample-receiving central region and multiple arms that extend or radiate out from the central region. Each arm includes a reaction zone formed by the presence of an analyte-capturing agent wherein the reaction zone of each arm is located at a different distance from the central region such that the analyte in the sample is captured accumulates in different quantities at at least some of the reaction zones of the arms in a manner that can be analyzed to yield semi-quantitative data from lateral flow assays.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: December 13, 2016
    Assignee: STC.UNM
    Inventor: Scott A. Sibbett
  • Patent number: 9500664
    Abstract: A system, including method and apparatus, for generating droplets suitable for droplet-based assays. The disclosed systems may include either one-piece or multi-piece droplet generation components configured to form sample-containing droplets by merging aqueous, sample-containing fluid with a background emulsion fluid such as oil, to form an emulsion of sample-containing droplets suspended in the background fluid. In some cases, the disclosed systems may include channels or other suitable mechanisms configured to transport the sample-containing droplets to an outlet region, so that subsequent assay steps may be performed.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: November 22, 2016
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Kevin D. Ness, Christopher F. Kelly, Donald A. Masquelier
  • Patent number: 9480981
    Abstract: An integrated device for a sample collection and transfer is provided. The integrated device comprises a capillary channel disposed between a first layer and a second layer, wherein the first layer comprises a hydrophilic layer comprising a fluid inlet for receiving a sample fluid to the capillary channel, wherein the capillary channel comprises an inner surface and an outer surface and an outlet for driving out the sample fluid. The device further comprises an interface assembly comprising: a third layer, a fourth layer, a fifth layer, and a flow path. The interface assembly is disposed on the outer surface of the capillary, at a determining position relative to the outlet, such that the capillary is in contact with the third layer of the interface assembly and the outlet is in contact with the flow path of the interface assembly for driving out the sample fluid from the integrated device.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: November 1, 2016
    Assignee: General Electric Company
    Inventors: Ralf Lenigk, Erin Jean Finehout, Xuefeng Wang
  • Patent number: 9476862
    Abstract: A nanostructure sensing device comprises a semiconductor nanostructure having an outer surface, and at least one of metal or metal-oxide nanoparticle clusters functionalizing the outer surface of the nanostructure and forming a photoconductive nanostructure/nanocluster hybrid sensor enabling light-assisted sensing of a target analyte.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: October 25, 2016
    Assignees: University of Maryland, College Park, The United States of America, as Represented by the Secretary of Commerce, National Institute of Standards and Technology, George Mason University, The George Washington University
    Inventors: Abhishek Motayed, Geetha Aluri, Albert V. Davydov, Mulpuri V. Rao, Vladimir P. Oleshko, Ritu Bajpai, Mona E. Zaghloul
  • Patent number: 9469529
    Abstract: The present invention provides a fiber base sensor and the fabricating method thereof. More specifically, one of the main goals of the present invention is to solve the problem existing in the prior art of the failure of forming a plurality of nano-particles on the surface of the fiber base sensor evenly by utilizing self-assembly process with the nano-imprint process. Furthermore, the another goal of the present invention is to provide detail parameters required in the said nano-imprinting process for avoiding the efficiency drop caused by over-embedding the nano-particles into the fiber based sensor.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: October 18, 2016
    Assignee: National Tsing Hua University
    Inventors: De-Hui Wan, Shih-Yu Tseng, Chung-Yao Yang, Szu-Ting Lin, Chao-Min Cheng
  • Patent number: 9468867
    Abstract: A microfluidic device is provided for inducing the separation of constituent elements from a microfluidic sample by introducing phase changes in the microfluidic sample while contained in a microfluidic channel in the device. At least a portion of the microfluidic sample is frozen to cause fractional exclusion of the constituent element from the frozen portion of the microfluidic sample. Different portions of the microfluidic sample may be frozen in different sectors and at different times in order to cause movement in a desired direction of the separated constituent element. Portions of the microfluidic sample may be frozen in a sequential order of adjacent sectors within the microfluidic channel in order to cause sequential movement of the excluded constituent element toward one portion of the microfluidic channel. The frozen portion of the microfluidic sample is then thawed, wherein the separated constituent element remains substantially separated from the thawed, purified microfluidic sample.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: October 18, 2016
    Assignee: The Aerospace Corporation
    Inventor: Richard P. Welle
  • Patent number: 9453812
    Abstract: An electrochemical-based analytical test strip for the determination of an analyte (such as glucose) in a bodily fluid sample (for example, a whole blood sample) and/or a characteristic of the bodily fluid sample (e.g., hematocrit) includes a sample-entry chamber with a sample-application opening disposed on an end edge of the electrochemical-based analytical test strip, and first and second sample-determination chambers, each in direct fluidic communication with the sample-entry chamber. The electrochemical-based analytical test strip also includes first and second electrodes (such as first and second hematocrit electrodes) disposed in the first sample-determination chamber, and a third and fourth electrodes (for example working and reference electrodes) disposed in the second sample-determination chamber.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: September 27, 2016
    Assignee: LifeScan Scotland Limited
    Inventors: Alexander Cooper, Antony Smith, Lynsey Whyte, Neil Whitehead, David McColl, Brian Guthrie, Timothy Lloyd, Rossano Massari, Christian Forlani
  • Patent number: 9452431
    Abstract: A chemical assay device includes a hydrophilic substrate and one or more hydrophobic structures that extend from a first side of the hydrophilic substrate to a second side of the hydrophilic substrate. A hydrophobic structure in the hydrophilic substrate forms a fluid barrier wall that extends from the first side of the hydrophilic substrate to the second side of the hydrophilic substrate with a deviation of less than 20° from a perpendicular axis between the first side and the second side. The hydrophobic structure is formed from a wax or a phase change ink.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: September 27, 2016
    Assignee: Xerox Corporation
    Inventors: Jing Zhou, Mandakini Kanungo, Nancy Y. Jia, Wei Hong
  • Patent number: 9448220
    Abstract: A system and method for analyzing contaminants such as hydrocarbons in soil and ground water utilizes a reaction device comprising a catalyst encapsulated in a permeable material and processes that device in contact with a contaminant in an analytical device in order to generate a spectrogram indicative of the contaminants in the soil and ground water.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: September 20, 2016
    Inventor: John David Hanby
  • Patent number: 9442102
    Abstract: A motor vehicle oil quality testing apparatus and system to assess the quality and viability of motor oil in a vehicle to determine if a change of oil is needed. An absorbent strip of chemically treated material is mounted on a self-contained single use display and test card on which a used oil sample is deposited and will change color based on the oil's determined alkalinity in a sealable color comparison chamber indicated to the user if the oil should be changed.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: September 13, 2016
    Inventor: Richard C. Harpman
  • Patent number: 9429507
    Abstract: All of bio-related substances, such as cells or bacteria, are placed at single and independent positions. A flow cell according to the present invention is used for analyzing a bio-related substance and includes a flow passageway and an injection opening and a discharge opening that are connected to the flow passageway. The flow passageway is provided with trapping structural members for trapping the bio-related substance. The trapping structural members include a structure forming a dead water region in which the bio-related substance is trapped.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 30, 2016
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takuya Matsui, Muneo Maeshima
  • Patent number: 9429578
    Abstract: An apparatus is provided for sensing an analyte in a fluid.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: August 30, 2016
    Assignee: Invoy Technologies, LLC
    Inventor: Lubna Ahmad
  • Patent number: 9417216
    Abstract: A surface acoustic wave (SAW) biofilm sensor includes a transmitting electric to acoustic wave transducer defining an upper surface and a lower surface, a receiving acoustic wave to electric transducer defining an upper surface and a lower surface, a piezoelectric film layer defining an upper surface and a lower surface, and a passivation film layer defining an upper surface and a lower surface. Portions of the lower surface of the piezoelectric film layer are disposed on the upper surface of the transmitting electric to acoustic wave transducer and on the upper surface of the receiving acoustic wave to electric transducer, and the lower surface of the passivation film layer is disposed on the upper surface of the piezoelectric film layer such that the upper surface of the passivation film layer is configured to enable contact with a biofilm.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: August 16, 2016
    Assignee: University of Maryland
    Inventors: Young Wook Kim, Reza Ghodssi, Agisilaos A. Iliadis, William E. Bentley, Mariana Tsacoumis Meyer
  • Patent number: 9412577
    Abstract: This invention relates to the field of mass spectrometry, and more specifically to a vacuum ultraviolet photoionization and chemical ionization combined ion source, which consists of a vacuum ultraviolet light source and an ion source chamber. An ion acceleration electrode, an ion repulsion electrode, an ion extraction electrode, and a differential interface electrode positioned inside the ion source chamber are arranged along the exit direction of the vacuum ultraviolet light beam in sequence and spaced, coaxial, and parallel from each other. The ion acceleration electrode, the ion repulsion electrode, the ion extraction electrode, and the differential interface electrode are all plate structures with central through holes. The vacuum ultraviolet light beam passes through the central through holes of the electrodes along the axial direction.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 9, 2016
    Inventors: Haiyang Li, Lei Hua, Qinghao Wu, Huapeng Cui, Keyong Hou
  • Patent number: 9410178
    Abstract: A biological particle analyzer is disclosed and includes a microchannel including an end coupled to a first drive electrode, another end coupled to a second drive electrode, a first detection area at an upstream location and an excitation area at a downstream location for containing particles flowing from the upstream location to the downstream location inside the microchannel, a first detection circuit coupled to the first detection area for outputting a first detection result when at least one particle has arrived at the first detection area, a light emission source, and a control module coupled to the first detection circuit and the light emission source for determining when to turn on or off the light emission source according to the first detection result.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 9, 2016
    Assignee: Wistron Corporation
    Inventors: Chun-Chih Lai, Ting-Wen Liu