Patents by Inventor David An

David An has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11858046
    Abstract: A method for producing a metal powder includes maintaining molten reducing metal in a sealed reaction vessel that is free of added oxygen and water, establishing a vortex in the molten reducing metal, introducing a metal halide into the vortex so that the molten reducing metal is in a stoichiometric excess to the metal halide, thereby producing metal particles and salt, removing unreacted reducing metal, removing the salt, and recovering the metal powder. The molten reducing metal can be a Group I metal, a Group II metal, or aluminum.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: January 2, 2024
    Assignee: Nanoscale Powders LLC
    Inventors: David Henderson, Andrew Matheson, Richard Van Lieshout, Donald Finnerty, John W. Koenitzer
  • Patent number: 11857705
    Abstract: An air treatment unit having a frame and a source of UV light, with the frame having an air guidance assembly. Air within a primary treatment volume is guided by the frame to move radially outwardly from the primary treatment volume through a dispersion angle. Air within the primary treatment volume is exposed to UV light rays from the UV light source. The air treatment unit is changeable between: a) a first state wherein a predetermined part of a volume of space within which the air treatment unit resides is strategically blocked from direct exposure to UV light rays generated by the UV light source; and b) a second state wherein at least a portion of the predetermined part of the volume of space is directly exposed to UV light rays from the UV light source.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: January 2, 2024
    Assignee: AERAPY LLC
    Inventors: David Skelton, Mike M. Uda
  • Patent number: 11859452
    Abstract: A latch system including a plurality of rocker latches, a rocker support, supporting the plurality of rocker latches, and a movement restrictor in operative connection with each rocker latch of the plurality of rocker latches, the movement restrictor allowing or restricting movement of each rocker latch of the plurality of rocker latches relative to the rocker support. A downhole tool including a sleeve movable relative to other portions of the tool, the sleeve having a profile at an uphole end thereof, an actuator runnable into contact with the sleeve, the actuator including the latch. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a latch system disposed within or as a part of the string.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: January 2, 2024
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: David Bishop, Ronald J. Garr
  • Patent number: 11857262
    Abstract: An intraocular pressure (IOP) sensing system may comprise an intraocular pressure sensing implant to be implanted into the eye of a patient for capturing absolute intraocular pressure measurements and an external device for capturing atmospheric pressure measurements. The intraocular pressure sensing implant may be configured to capture an absolute intraocular pressure measurement at an appointed time, and the external device may be configured to capture a plurality of atmospheric pressure measurements around the appointed time.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 2, 2024
    Assignee: GLAUKOS CORPORATION
    Inventors: Nicholas Gunn, Cesario Pereira Dos Santos, David S. Haffner
  • Patent number: 11857438
    Abstract: A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: January 2, 2024
    Assignee: Simplify Medical Pty Ltd
    Inventors: Malan de Villiers, Ulrich Hahnle, David Hovda
  • Patent number: 11859267
    Abstract: A nickel-based alloy composition consisting, in weight percent, of: between 4.0% and 6.9% aluminium, between 0.0% and 23.4% cobalt, between 9.1% and 11.9% chromium, between 0.1% and 4.0% molybdenum, between 0.6% and 3.7% niobium, between 0.0 and 1.0% tantalum, between 0.0% and 3.0% titanium, between 0.0% and 10.9% tungsten, between 0.02 wt. % and 0.35 wt. % carbon, between 0.001 and 0.2 wt. % boron, between 0.001 wt. % and 0.5 wt. %. zirconium, between 0.0 and 0.5% silicon, between 0.0 and 0.1% yttrium, between 0.0 and 0.1% lanthanum, between 0.0 and 0.1% cerium, between 0.0 and 0.003% sulphur, between 0.0 and 0.25% manganese, between 0.0 and 0.5% copper, between 0.0 and 0.5% hafnium, between 0.0 and 0.5% vanadium, between 0.0 and 10.0% iron, the balance being nickel and incidental impurities.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 2, 2024
    Assignee: OXFORD UNIVERSITY INNOVATION LIMITED
    Inventors: Roger Reed, David Crudden
  • Patent number: 11860294
    Abstract: Techniques and apparatuses are described that implement electromagnetic vector sensors (EMVS) for a smart-device-based radar system. Instead of including an antenna array of similar antenna elements, the radar system includes two or more electromagnetic vector sensors. At least one of the electromagnetic vector sensors is used for transmission and at least another of the electromagnetic vector sensors is used for reception. Each electromagnetic vector sensor includes a group of antennas with different antenna patterns, orientations, and/or polarizations. An overall footprint of the two electromagnetic vector sensors (e.g., one for transmission and one for reception) can be smaller than antenna arrays used by other radar systems, thereby enabling the radar system to be implemented within space-constrained devices.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: January 2, 2024
    Assignee: Google LLC
    Inventors: Luzhou Xu, Jiang Zhu, Jaime Lien, David J. Weber
  • Patent number: 11861723
    Abstract: Systems and methods for generation and use of vendor management platform architectures are disclosed. A compliance component may be utilized to receive user input data indicating supply contracts between a client and a vendor. The user input data may be utilized to determine insurable obligations associated with the supply contract and provide indications as to whether or not the vendor is compliant with the insurable obligation required by the supply contract. An exposure assessment component may be utilized to determine an exposure score associated with a client account and/or a vendor account based on various compliance factors, spending amounts, and/or properties associated with at least one of goods and/or services that a vendor will supply to a client.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: January 2, 2024
    Assignee: AON RISK SERVICES, INC. OF MARYLAND
    Inventors: Lewis C. Lee, Louise Janice Luvina Bowman, Samuel Cameron Fleming, David Christopher Ledgerwood, Jesus Gonzalez
  • Patent number: 11858913
    Abstract: Disclosed herein are compounds of Formula I: or a stereoisomer or a tautomer thereof, or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising such compounds, and methods of treating disease by administering or contacting a subject with one or more of the above compounds.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: January 2, 2024
    Assignee: Aligos Therapeutics, Inc.
    Inventors: David Craig McGowan, Pierre Jean-Marie Bernard Raboisson, Koen Vandyck, Jerome Deval, Leonid Beigelman
  • Patent number: 11863217
    Abstract: Aspects of this disclosure relate to a radio frequency module with a radio frequency coupler and a coupler switching circuit. The coupler switching circuit can provide an indication of radio frequency power generated by the radio frequency coupler to a first input/output port. The coupler switching circuit can also pass an indication of radio frequency power received at the first input/output port to a second input/output port, and pass an indication of radio frequency power received at the second input/output port to the first input/output port.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: January 2, 2024
    Assignee: Skyworks Solutions, Inc.
    Inventor: David Richard Pehlke
  • Patent number: 11862884
    Abstract: A surgical instrument including a housing, an elongated portion, and a loading unit is disclosed. The elongated portion extends distally from the housing, defines a longitudinal axis, and includes an electrical contact. The loading unit is configured to releasably engage the elongated portion. The loading unit includes an electronic component, a proximal portion including an electrical contact in electrical communication with the electronic component, and an end effector coupled to the proximal portion and configured to manipulate tissue. Engagement between the elongated portion and the loading unit causes the electrical contact of the elongated portion to engage the electrical contact of the loading unit thereby electrically connecting the elongated portion and the loading unit.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: January 2, 2024
    Assignee: Covidien LP
    Inventors: Andriy Buyda, David M. Chowaniec, Xingrui Chen, Brian J. Creston, Saumya Banerjee
  • Patent number: 11857391
    Abstract: A drill bit and method for normalizing bone is provided. The drill bit has a non-round drill bit core that is adapted to cut hard bone and to not cut soft bone. The drill bit has a cutting edge which may be positioned within a compression zone of the non-round drill bit core. The rotational speed of the drill bit and the profile of the drill bit core are tuned so that hard bone recovers into a cutting zone defined by the cutting edge while soft bone remains outside of the cutting zone. The insertion torque of the drill bit can be measured to determine when the normalization is adequate.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: January 2, 2024
    Assignee: NOBEL BIOCARE SERVICES AG
    Inventors: Edmund Burke, David Sollberger, Silvio Nussbaumer, Stefan Holst, Hans Geiselhoringer, Antony Quarry, Jorg Weitzel
  • Patent number: 11862038
    Abstract: In some embodiments, a computer-implemented method for measuring motion values associated with movements of an object as the objects drives along a track comprises: receiving, using a wireless network transceiver, experiment instructions for performing an experiment; generating, based on the experiment instructions, driving instructions for causing the object to drive along the track; executing the driving instructions to cause the object to drive along the track; as the object is driving along the track: receiving, from one or more sensors, motion values associated with the movements of the object as the object drives along the track; transmitting, using the wireless network transceiver, the motion values associated with the movements of the object to one or more user devices to cause a user device, from the one or more user devices, to generate and display a graphical representation of the motion values on a display device of the user device.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: January 2, 2024
    Assignee: MYRIAD SENSORS, INC.
    Inventors: Clifton Roozeboom, David Bakker, John Litzenberger, Robert Douthitt, John Bower
  • Patent number: 11860733
    Abstract: Low-density parity-check (LDPC) coding based on memory cell voltage distribution (CVD) in data storage devices. In one embodiment, a memory controller includes a memory interface configured to interface with a non-volatile memory; and a controller. The controller is configured to receive a plurality of data pages to be stored in the non-volatile memory, and transform the plurality of data pages into a plurality of transformed data pages. The controller is further configured to determine a plurality of parity bits based on the plurality of transformed data pages, and store the plurality of data pages and the plurality of parity bits in the non-volatile memory.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: January 2, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Eran Sharon, Ran Zamir, David Avraham, Idan Alrod
  • Patent number: 11859924
    Abstract: In one aspect, a cooling tower system is provided that includes an evaporative heat exchanger, a sensor configured to detect a parameter of evaporative liquid distributed onto the evaporative heat exchanger, and an evaporative liquid treatment system. The cooling tower system further includes a controller having a normal operating mode wherein the controller operates the evaporative liquid treatment system to treat the evaporative liquid upon a determination of inadequate evaporative liquid quality based at least in part on the parameter of the evaporative liquid. The controller has a failsafe operating mode wherein the controller changes operation of the cooling tower upon a determination that the operation of the evaporative liquid treatment system is unable to remedy the inadequate evaporative liquid quality.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: January 2, 2024
    Assignee: Baltimore Aircoil Company, Inc.
    Inventors: Preston Blay, Frank T. Morrison, David Andrew Aaron
  • Patent number: 11859254
    Abstract: Provided herein is technology relating to detecting neoplasia and particularly, but not exclusively, to methods, compositions, and related uses for detecting premalignant and malignant neoplasms such as gastric cancer.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: January 2, 2024
    Assignees: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH, Exact Sciences Corporation
    Inventors: David A. Ahlquist, William R. Taylor, John B. Kisiel, Tracy C. Yab, Douglas W. Mahoney, Hatim T. Allawi
  • Patent number: 11864311
    Abstract: Systems and methods for educational electronics devices such as may be assembled by non-manufacturer builders, including by personal or hobbyist individuals and by groups such as clubs or classes. Methods and systems relate to Surface Mount Device (SMD) use, measurement systems, communications skill acquisition, physical construction of educational electronics, builder construction/configuration and maintenance of devices, subsystem componentry designed for effective use in educational electronics, circuit designs that permit individual builders to construct professional quality devices, and cognitively adapted methods and systems to optimize learning and performance during and after builder assembly.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: January 2, 2024
    Assignee: HEATHKIT COMPANY, INC.
    Inventors: Andrew S. Cromarty, Donald J. Peterson, Jasen Levoy, William Charles Calhoun, David Brainerd, Ann E. Cromarty, Simon A. Cromarty
  • Patent number: 11863350
    Abstract: A Provider Edge (PE) node includes a plurality of ports including an inter-chassis port to a second PE node, a port connected to a root node, and one or more ports connected to leaf nodes, wherein the plurality of ports are in an Ethernet Tree (E-Tree), and wherein the root node is dual-homed to the PE node and the second PE node; switching circuitry configured to switch traffic between the plurality of ports; and circuitry configured to designate the inter-chassis port as one of a leaf node and a root node in the E-Tree instance, and manage a designation of the inter-chassis port based on a status of the port connected to the root node. The designation is changed in a data plane instead of in a control plane.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: January 2, 2024
    Assignee: Ciena Corporation
    Inventors: Sami Boutros, Muthurajah Sivabalan, David Gilson
  • Patent number: 11862195
    Abstract: The present disclosure is generally related to a tape head and a tape drive including a tape head. The tape head comprises one or more head assemblies, each head assembly comprising a plurality of write heads aligned in a row, at least one writer servo head aligned with the row of write heads, a plurality of read heads aligned in a row, and at least one reader servo head aligned with the row of read heads. The writer servo head and the reader servo head are independently controllable and are configured to operate concurrently. The tape head is able to accurately and independently position the write heads using the writer servo head(s) when writing data to a tape and position the read heads using the reader servo head(s) when reading data from the tape, even if the write heads and read heads are or become mis-aligned.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: January 2, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Robert G Biskeborn, David J. Seagle, Diane L Brown
  • Patent number: 11859089
    Abstract: The invention pertains to a process for the production of crystalline carbon structure networks in a reactor 3 which contains a reaction zone 3b and a termination zone 3c, by injecting a thermodynamically stable micro-emulsion c, comprising metal catalyst nanoparticles, into the reaction zone 3b which is at a temperature of above 600° C., preferably above 700° C., more preferably above 900° C., even more preferably above 1000° C., more preferably above 1100° C., preferably up to 3000° C., more preferably up to 2500° C., most preferably up to 2000° C., to produce crystalline carbon structure networks e, transferring these networks e to the termination zone 3c, and quenching or stopping the formation of crystalline carbon structure networks in the termination zone by spraying in water d.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: January 2, 2024
    Assignee: CARBONX IP 3 B.V.
    Inventors: Rutger Alexander David Van Raalten, Daniela Sordi