Patents by Inventor T. Chang

T. Chang 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: 10779941
    Abstract: A delivery cylinder for a prosthetic implant can include a first tubular portion and a second tubular portion. The second tubular portion has a plurality of strut members coupled to the first tubular portion that define a volume for containing the prosthetic implant in a radially compressed state. The strut members can include respective flex regions configured such that application of force to the strut members causes deformation of the flex regions and corresponding radially inward or outward movement of the strut members relative to a longitudinal axis of the delivery cylinder between an expanded configuration and a contracted configuration.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 22, 2020
    Assignee: Edwards Lifesciences Corporation
    Inventors: Arvin T. Chang, Sam Sok, Amanda K. Anderson, Ajay Chadha
  • Patent number: 10761896
    Abstract: In one embodiment, a network functions virtualization infrastructure can be managed in a decentralized fashion. A front end can receive a request to provision a virtualized network function. The front end can create service descriptors for the request according to the virtualized network function, the service descriptors comprising a hierarchy of information elements organized based on distributed back-end agents operable to provision and manage the virtualized network function. The front end can store the service descriptors in a distributed data store.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: September 1, 2020
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Chiajen Tsai, Ganesh Sundaram, Muthumayan Madhayyan, Chunhui Wong, Larry T. Chang
  • Patent number: 10746758
    Abstract: A microelectromechanical (MEMS) sensor suite including a three axis accelerometer including an accelerometer sensor polyhedron having a series of faces, and a series of axial accelerometers on three faces of the series of faces of the accelerometer sensor polyhedron. The MEMS sensor suite also includes a three axis magnetometer including a magnetometer sensor polyhedron having a series of faces, and a series of axial magnetometers on three faces of the series of faces of the magnetometer sensor polyhedron.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: August 18, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Hung Nguyen, David T. Chang, Raviv Perahia, Logan D. Sorenson
  • Publication number: 20200256676
    Abstract: A resonator includes an anchor, an outer stiffener ring on an outer perimeter of the resonator, and a plurality of curved springs between the anchor and the outer stiffener ring.
    Type: Application
    Filed: April 13, 2020
    Publication date: August 13, 2020
    Applicant: HRL Laboratories, LLC
    Inventors: Lian X. HUANG, Logan SORENSON, Raviv PERAHIA, Hung NGUYEN, David T. CHANG
  • Publication number: 20200259178
    Abstract: The present application is directed to carbon materials comprising an optimized pore structure. The carbon materials comprise enhanced electrochemical properties and find utility in any number of electrical devices, for example, as electrode material in ultracapacitors. Methods for making the disclosed carbon materials are also disclosed.
    Type: Application
    Filed: May 28, 2019
    Publication date: August 13, 2020
    Inventors: Alan T. Chang, Henry R. Costantino, Aaron Marshall Feaver, Amalia L. Oppie, Yangyang Pan, Liam Cover, William D. Scott
  • Publication number: 20200223598
    Abstract: Single-dose vials for liquid solutions (e.g., liquid medicaments) can be designed to be used in conjunction with a medication regimen. A single-dose vial may include a removable member that prevents a liquid solution from escaping, but also allows an individual (e.g., a patient or a medical professional) to readily administer the liquid solution. A single-dose vial could include one or more discrete capsules that include the same or different liquid solutions. For example, multiple capsules could be arranged within a vial so that different liquid solutions are simultaneously or sequentially ejected following removal of the removable member and application of pressure to the multiple capsules (e.g., due to the individual squeezing the vial). Multiple vials can also be connected to one another in a strip configuration, which allows the individual to more easily adhere to a medication regimen that requires multiple doses over a period of time.
    Type: Application
    Filed: December 2, 2019
    Publication date: July 16, 2020
    Inventors: Robert T. Chang, Paolo De Marino, Manishi A. Desai
  • Patent number: 10697772
    Abstract: A sensor includes an acceleration or magnetic field sensitive microelectromechanical systems (MEMS) resonator, configured to oscillate in at least a first normal mode and a second normal mode. The sensor further includes: a coarse readout circuit configured to drive the first normal mode, measure a motion of the first normal mode, and derive from the measured motion a coarse measurement of the true acceleration or true external magnetic field; and a fine readout circuit configured to drive the second normal mode, measure a motion of the second normal mode, and derive from the measured motion and the coarse measurement a measurement of the difference between the true acceleration or true external magnetic field and the coarse measurement.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: June 30, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Logan D. Sorenson, Raviv Perahia, David T. Chang, Randall L. Kubena, Deborah J. Kirby, Hung Nguyen, Richard J. Joyce
  • Publication number: 20200197175
    Abstract: A method for delivering a prosthetic valve to a native annulus of a heart can include inserting a delivery apparatus into a patient's body, advancing the delivery apparatus to an implantation location within the native annulus, retracting a delivery sheath of the delivery apparatus relative to the prosthetic valve to expose the prosthetic valve from a distal end of the delivery sheath, and after the prosthetic valve is exposed from the delivery sheath, expanding the prosthetic valve from a radially compressed state to a radially expanded state by reducing axial tension on a first end and a second end of the prosthetic valve.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 25, 2020
    Inventors: Arvin T. Chang, Yair A. Neumann, Gil Senesh, Hernan Altman, Scott Louis Pool, Hannah Gibson, Amanda Kristine Anderson White, Peter Phong Tran, Ly Th Phan
  • Publication number: 20200186524
    Abstract: Systems and methods receive a first indication that an Internet of Things (IoT) device is attempting to access a home network; determine that the IoT device is a trusted device; store an identifier associated with the IoT device to a blockchain in response to determining that the IoT device is a trusted device; receive a second indication that an event has occurred with respect to the IoT device; determine whether the event is a major event; and verify the identifier associated with the IoT device by storing an identity and information associated with the event to the blockchain in response to determining that the event is a major event.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 11, 2020
    Inventors: Michelle Zhou, Ying Wang, Wen-De T. Chang, Satya P. Yandra, Erfaun Noorani
  • Patent number: 10655964
    Abstract: A resonator includes an anchor, an outer stiffener ring on an outer perimeter of the resonator, and a plurality of curved springs between the anchor and the outer stiffener ring.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: May 19, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Lian X. Huang, Logan D. Sorenson, Raviv Perahia, Hung Nguyen, David T. Chang
  • Publication number: 20200139165
    Abstract: Systems and methods for respiratory health management are provided. An air filtration and analysis system may comprise an apparatus configured to be worn by a user. The apparatus may comprise a filtration device. The system may also include a plurality of sensors configured to collect data. A portion of the sensor data may be indicative of (i) one or more characteristics of the air inhaled and/or exhaled by the user, and/or (ii) an environment in which the user is located. At least one sensor and/or the apparatus may be in communication with a processor that is configured to analyze the collected sensor data.
    Type: Application
    Filed: January 3, 2020
    Publication date: May 7, 2020
    Inventors: Eric R. Sokol, Jan Liphardt, Robert T. Chang
  • Publication number: 20200135856
    Abstract: The disclosure provides an apparatus for preventing an integrated circuit (IC) structure from entering a latch-up mode. In an embodiment, the apparatus may include: a p-type substrate; an n-well within the p-type substrate; an n-type region within the p-type substrate, the n-type region being distinct from the n-well; a p-type region within the n-well; a power supply electrically coupled to the p-type region within the n-well; and a directional diode electrically coupling the power supply to the n-well in parallel with the p-type region. The directional diode biases a current flow from the power supply to the n-well, and the directional diode contacts the n-well distal to the p-type region.
    Type: Application
    Filed: October 31, 2018
    Publication date: April 30, 2020
    Inventors: Shunhua T. Chang, Ephrem G. Gebreselasie, Mujahid Muhammad, Xiangxiang Lu, Mickey H. Yu
  • Patent number: 10636872
    Abstract: The disclosure provides an apparatus for preventing an integrated circuit (IC) structure from entering a latch-up mode. In an embodiment, the apparatus may include: a p-type substrate; an n-well within the p-type substrate; an n-type region within the p-type substrate, the n-type region being distinct from the n-well; a p-type region within the n-well; a power supply electrically coupled to the p-type region within the n-well; and a directional diode electrically coupling the power supply to the n-well in parallel with the p-type region. The directional diode biases a current flow from the power supply to the n-well, and the directional diode contacts the n-well distal to the p-type region.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: April 28, 2020
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Shunhua T. Chang, Ephrem G. Gebreselasie, Mujahid Muhammad, Xiangxiang Lu, Mickey H. Yu
  • Patent number: 10604560
    Abstract: The present invention provides liquid formulations of SYNAGIS® or an antigen-binding fragment thereof that immunospecifically bind to a respiratory syncytial virus (RSV) antigen, which formulations exhibit stability, low to undetectable levels of aggregation, and very little to no loss of the biological activities of SYNAGIS® or an antigen-binding fragment thereof, even during long periods of storage. In particular, the present invention provides liquid formulations of SYNAGIS® or an antigen-binding fragment thereof which immunospecifically binds to a RSV antigen, which formulations are substantially free of surfactant, inorganic salts, and/or other common excipients. Furthermore, the invention provides method of preventing, treating or ameliorating symptoms associated with RSV infection utilizing liquid formulations of the present invention.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: March 31, 2020
    Assignee: Arexis AB
    Inventors: Cynthia N. Oliver, Erica Shane, Benjamin S. Isaacs, Christian B. Allan, Stephen T. Chang
  • Patent number: 10583007
    Abstract: A delivery apparatus for a prosthetic implant can include an elongate first shaft, a first suture guide coupled to the first shaft, an elongate second shaft, and a second suture guide coupled to the second shaft. The first shaft can extend coaxially through the second shaft and the second suture guide, the first suture guide can be disposed distal to the second suture guide, and the first suture guide and the second suture guide can be configured to be axially movable relative to each other.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 10, 2020
    Assignee: Edwards Lifesciences Corporation
    Inventors: Arvin T. Chang, Yair A. Neumann, Gil Senesh, Hernan Altman, Scott Louis Pool, Hannah Gibson, Amanda K. Anderson, Peter Phong Tran, Ly Th Phan
  • Patent number: 10571267
    Abstract: An angular rate sensor. The sensor includes a Coriolis vibratory gyroscope (CVG) resonator, configured to oscillate in a first normal mode and in a second normal mode; a frequency reference configured to generate a reference signal; and a first phase control circuit. The first phase control circuit is configured to: measure a first phase difference between: a first phase target, and the difference between: a phase of an oscillation of the first normal mode and a phase of the reference signal. The first phase control circuit is further configured to apply a first phase correction signal to the CVG resonator, to reduce the first phase difference. A second phase control circuit is similarly configured to apply a second phase correction signal to the CVG resonator, to reduce a corresponding, second phase difference.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: February 25, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Logan D. Sorenson, Raviv Perahia, David T. Chang, Randall L. Kubena, Deborah J. Kirby, Hung Nguyen, Richard J. Joyce
  • Patent number: 10543386
    Abstract: Systems and methods for respiratory health management are provided. An air filtration and analysis system may comprise an apparatus configured to be worn by a user. The apparatus may comprise a filtration device. The system may also include a plurality of sensors configured to collect data. A portion of the sensor data may be indicative of (i) one or more characteristics of the air inhaled and/or exhaled by the user, and/or (ii) an environment in which the user is located. At least one sensor and/or the apparatus may be in communication with a processor that is configured to analyze the collected sensor data.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: January 28, 2020
    Assignee: ADVANCED VENTILATION APPLICATIONS, INC.
    Inventors: Eric R. Sokol, Jan Liphardt, Robert T. Chang
  • Patent number: 10525958
    Abstract: An electric parking brake for an automotive vehicle comprises a brake caliper having first and second bores. A first piston is mounted in the first bore and a second piston is mounted in the second bore. A first actuator supports the first piston and a second actuator supports the second piston. The first and second actuators are controlled individually.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: January 7, 2020
    Assignees: Kelsey-Hayes Company, Lucas Automotive GmbH
    Inventors: Manuel Barbosa, Antonio Eduardo De Morais, H. T. Chang, Christopher McCormick, Michael Schog, William Vanderroest
  • Patent number: 10514261
    Abstract: A geopositioning system. The geopositioning system includes an accelerometer including three sensing axes, a gyroscope including three sensing axes, and a magnetometer including three sensing axes, and a processing circuit. The processing circuit is configured to calculate a location of the geopositioning system as a latitude, longitude, and altitude with respect to the Earth.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: December 24, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Logan D. Sorenson, Hung Nguyen, Raviv Perahia, Deborah J. Kirby, Richard J. Joyce, David T. Chang
  • Patent number: 10494157
    Abstract: Single-dose vials for liquid solutions (e.g., liquid medicaments) can be designed to be used in conjunction with a medication regimen. A single-dose vial may include a removable member that prevents a liquid solution from escaping, but also allows an individual (e.g., a patient or a medical professional) to readily administer the liquid solution. A single-dose vial could include one or more discrete capsules that include the same or different liquid solutions. For example, multiple capsules could be arranged within a vial so that different liquid solutions are simultaneously or sequentially ejected following removal of the removable member and application of pressure to the multiple capsules (e.g., due to the individual squeezing the vial). Multiple vials can also be connected to one another in a strip configuration, which allows the individual to more easily adhere to a medication regimen that requires multiple doses over a period of time.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: December 3, 2019
    Inventors: Robert T. Chang, Paolo De Marino, Manishi A. Desai