Patents by Inventor KEVIN A. LI

KEVIN A. LI 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).

  • Methods, Systems, and Products for Image Displays
    Publication number: 20200166689
    Abstract: Methods, systems, and products illuminate display devices. An image is injected into a waveguide. The image propagates at total internal reflectance within the waveguide. A frustrator withdraws a frustrated image from the waveguide, and the frustrated image may be displayed to a viewer.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Applicant: AT&T Intellectual Property I, L.P.
    Inventor: Kevin A. Li
  • ENZYMATIC PREPARATION OF INCREASED ANTICOAGULANT BOVINE SOURCED HEPARIN
    Publication number: 20200129540
    Abstract: A heparin structure with increased anticoagulant activity and method of making the same are disclosed. A heparin sample is provided and treated with a heparan sulfate sulfotransferase in an enzymatic reaction to add sulfuryl groups from a sulfuryl group source to the heparin sample, resulting in a heparin structure having above about 8% more 3-O-sulfo groups relative to wild-type bovine intestinal heparin. The added sulfuryl groups modify the heparin structure and increase the sample's binding to antithrombin III and its anticoagulant activity to be more similar and a viable alternative to porcine intestinal heparin. The modified heparin exhibits an anti-FXa activity and an anti-FIIa activity greater than about 180 U/mg, and a ratio of the anti-FXa activity to the anti-FIIa activity of about 0.9 to about 1.1, consistent with U.S. Pharmacopeia (USP) heparin activity specifications.
    Type: Application
    Filed: March 20, 2018
    Publication date: April 30, 2020
    Applicant: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Li Fu, Kevin Li, Daisuke Mori, Makoto Hirakane, Jonathan S. Dordick, Robert J. Linhardt
  • Methods for slot antenna design for wearable electronic devices and conductive housings
    Patent number: 10637129
    Abstract: A wearable computing device can include a monopole-excited slot antenna formed by a gap between a housing (such as a highly conductive housing) and a bracket (such as a highly conductive bracket) within the highly conductive housing and by a back cavity between the highly conductive bracket and the PCB. The antenna configuration can include a monopole antenna electrically coupled to a printed circuit board and a slot antenna that is excited through coupled electromagnetic fields. The highly conductive bracket is positioned near a display window of the device, mostly below and partially enclosing a battery. The highly conductive bracket is positioned above the printed circuit board. This configuration allows for a relatively small dead band in the display window, a larger battery, compact and mechanically simple configuration, and superior water resistance.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: April 28, 2020
    Assignee: Fitbit, Inc.
    Inventors: Yonghua Wei, Kevin Li, Patrick James Markan, Allen Yu-Li Wang, Teemu Taneli Raafael Kaiponen, Christos Kinezos Ioannou
  • Methods, systems, and products for image displays
    Patent number: 10591661
    Abstract: Methods, systems, and products illuminate display devices. An image is injected into a waveguide. The image propagates at total internal reflectance within the waveguide. A frustrator withdraws a frustrated image from the waveguide, and the frustrated image may be displayed to a viewer.
    Type: Grant
    Filed: January 6, 2018
    Date of Patent: March 17, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventor: Kevin A. Li
  • INTEGRATED ECG ELECTRODE AND ANTENNA RADIATOR
    Publication number: 20200015701
    Abstract: Multiple circuits in a computing device can share one or more conductive elements. The use of the conductive element can vary by circuit, such as an antenna radiator for a radio frequency (RF) circuit or an electrode for an electrocardiography (ECG) circuit. The circuitry sharing a conductive element can utilize signals obtained over different frequency ranges. Those ranges can be used to select decoupling circuitry, or elements, that can enable the respective circuits to obtain signals over a respective frequency range, excluding signals over one or more other frequency ranges corresponding to other circuitry sharing the circuit. Such an approach allows for concurrent independent operation of the circuitry sharing a conductive element.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 16, 2020
    Inventors: Yonghua WEI, Faton TEFIKU, Kevin LI, Man-Chi LIU, Lindsey Michelle SUNDEN, Peter W. RICHARDS, Dennis Jacob McCRAY, Christos Kinezos IOANNOU, Kyung Nim NOH
  • BAND LATCH MECHANISM AND HOUSING WITH INTEGRATED ANTENNA
    Publication number: 20200014098
    Abstract: A band latch mechanism that is configured to connect a wristband to a fitness tracker is provided. The band latch mechanism may be configured to be inserted into a cavity of a housing of the fitness tracker and configured so that any metallic body of the band latch mechanism does not contact metallic surfaces of the cavity in order to prevent an electrical ground from being positioned within a keep-out zone of an antenna of the fitness tracker. A housing with integrated antenna structures is also disclosed.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Inventors: Nan Xu, Christos Kinezos Ioannou, Kevin Li, Chadwick John Harber, Eric John Fairbanks, Jonah Avram Becker
  • Electromagnetic Reflection Profiles
    Publication number: 20190339375
    Abstract: Methods, systems, and products determine electromagnetic reflective characteristics of ambient environments. A wireless communications device sends a cellular impulse and receives reflections of the cellular impulse. The cellular impulse and the reflections of the cellular impulse may be compared to determine the electromagnetic reflective characteristics of an ambient environment.
    Type: Application
    Filed: July 12, 2019
    Publication date: November 7, 2019
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Robert Raymond Miller, II, Kevin A. Li, Troy C. Meuninck, James H. Pratt, Horst J. Schroeter, Behzad Shahraray
  • CUSTOM PILLOWS, SYSTEM AND PROCESS OF DETERMINING OPTIMUM PILLOW CHARACTERISTICS
    Publication number: 20190298088
    Abstract: A system for making a custom pillow using selected ones of several, different, interchangeable components, the selection based on a potential user's answers to questions that identify the user's needs and preferences in regard to pillow characteristics.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Applicant: PLUTO BRAND, INC.
    Inventors: KEVIN LI, SUSANA SAELIU
  • Band latch mechanism and housing with integrated antenna
    Patent number: 10418693
    Abstract: A band latch mechanism that is configured to connect a wristband to a fitness tracker is provided. The band latch mechanism may be configured to be inserted into a cavity of a housing of the fitness tracker and configured so that any metallic body of the band latch mechanism does not contact metallic surfaces of the cavity in order to prevent an electrical ground from being positioned within a keep-out zone of an antenna of the fitness tracker. A housing with integrated antenna structures is also disclosed.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: September 17, 2019
    Assignee: Fitbit, Inc.
    Inventors: Nan Xu, Christos Kinezos Ioannou, Kevin Li, Chadwick John Harber, Eric John Fairbanks, Jonah Avram Becker
  • Methods, Systems, and Products for Recalling and Retrieving Documentary Evidence
    Publication number: 20190278801
    Abstract: Methods, systems, and products help users recall memories and search for content of those memories. When a user cannot recall a memory, the user is prompted with questions to help recall the memory. As the user answers the questions, a virtual recollection of the memory is synthesized from the answers to the questions. When the user is satisfied with the virtual recollection of the memory, a database of content may be searched for the virtual recollection of the memory. Video data, for example, may be retrieved that matches the virtual recollection of the memory. The video data is thus historical data documenting past events.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 12, 2019
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Kevin A. Li, Troy C. Meuninck, Robert Raymond Miller, II, James H. Pratt, Horst J. Schroeter, Behzad Shahraray
  • Electromagnetic reflection profiles
    Patent number: 10393868
    Abstract: Methods, systems, and products determine electromagnetic reflective characteristics of ambient environments. A wireless communications device sends a cellular impulse and receives reflections of the cellular impulse. The cellular impulse and the reflections of the cellular impulse may be compared to determine the electromagnetic reflective characteristics of an ambient environment.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: August 27, 2019
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Robert Raymond Miller, II, Kevin A. Li, Troy C. Meuninck, James H. Pratt, Horst J. Schroeter, Behzad Shahraray
  • METHODS FOR SLOT ANTENNA DESIGN FOR WEARABLE ELECTRONIC DEVICES AND CONDUCTIVE HOUSINGS
    Publication number: 20190260116
    Abstract: A wearable computing device can include a monopole-excited slot antenna formed by a gap between a housing (such as a highly conductive housing) and a bracket (such as a highly conductive bracket) within the highly conductive housing and by a back cavity between the highly conductive bracket and the PCB. The antenna configuration can include a monopole antenna electrically coupled to a printed circuit board and a slot antenna that is excited through coupled electromagnetic fields. The highly conductive bracket is positioned near a display window of the device, mostly below and partially enclosing a battery. The highly conductive bracket is positioned above the printed circuit board. This configuration allows for a relatively small dead band in the display window, a larger battery, compact and mechanically simple configuration, and superior water resistance.
    Type: Application
    Filed: January 22, 2019
    Publication date: August 22, 2019
    Inventors: Yonghua Wei, Kevin Li, Patrick James Markan, Allen Yu-Li Wang, Teemu Taneli Raafael Kaiponen, Christos Kinezos Ioannou
  • BIOSYNTHETIC HEPARIN
    Publication number: 20190225998
    Abstract: The present disclosure relates to synthesis of heparin, which may be bioequivalent to porcine USP Heparin Sodium. The synthesis may involve three intermediates starting from heparosan.
    Type: Application
    Filed: September 7, 2017
    Publication date: July 25, 2019
    Applicant: Rensselaer Polytechnic Institute
    Inventors: Marc DOUAISI, Navdeep GROVER, Payel DATTA, Elana PASKALEVA, Lei LIN, Paul BRODFUEHRER, Trevor J. SIMMONS, Akihiro ONISHI, Makoto HIRAKANE, Li FU, Kevin LI, Robert J. LINHARDT, Jonathan DORDICK, Daisuke MORI
  • Methods, systems, and products for recalling and retrieving documentary evidence
    Patent number: 10346467
    Abstract: Methods, systems, and products help users recall memories and search for content of those memories. When a user cannot recall a memory, the user is prompted with questions to help recall the memory. As the user answers the questions, a virtual recollection of the memory is synthesized from the answers to the questions. When the user is satisfied with the virtual recollection of the memory, a database of content may be searched for the virtual recollection of the memory. Video data, for example, may be retrieved that matches the virtual recollection of the memory. The video data is thus historical data documenting past events.
    Type: Grant
    Filed: January 21, 2017
    Date of Patent: July 9, 2019
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Kevin A. Li, Troy C. Meuninck, Robert Raymond Miller, II, James H. Pratt, Horst J. Schroeter, Behzad Shahraray
  • Methods for slot antenna design for wearable electronic devices and conductive housings
    Patent number: 10320063
    Abstract: A wearable computing device can include a monopole-excited slot antenna formed by a gap between a housing (such as a highly conductive housing) and a bracket (such as a highly conductive bracket) within the highly conductive housing and by a back cavity between the highly conductive bracket and the PCB. The antenna configuration can include a monopole antenna electrically coupled to a printed circuit board and a slot antenna that is excited through coupled electromagnetic fields. The highly conductive bracket is positioned near a display window of the device, mostly below and partially enclosing a battery. The highly conductive bracket is positioned above the printed circuit board. This configuration allows for a relatively small dead band in the display window, a larger battery, compact and mechanically simple configuration, and superior water resistance.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: June 11, 2019
    Assignee: Fitbit, Inc.
    Inventors: Yonghua Wei, Kevin Li, Patrick James Markan, Allen Yu-Li Wang, Teemu Taneli Raafael Kaiponen, Christos Kinezos Ioannou
  • Self-Propelled Device
    Publication number: 20190086915
    Abstract: A spherical, self-propelled device responds to remote controls from a user. The self-propelled device has an internal drive system and an internal vision system. The vision system remains in a constant orientation with respect to the spherical, self-propelled device. As the spherical, self-propelled device rolls along a surface, the internal vision system captures video data from an upward field of view.
    Type: Application
    Filed: February 13, 2017
    Publication date: March 21, 2019
    Inventors: Kevin Li, Anthony Ko-Ping Chien, Goh Jian Kai, Jessica A. Williamson
  • Promoter and regulatory elements for improved expression of heterologous genes in host cells
    Patent number: 10202616
    Abstract: Disclosed are a recombinant expression vector and a host cell that contains the vector.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: February 12, 2019
    Assignee: AMGEN INC.
    Inventors: Mark Daris, Jennitte LeAnn Stevens, Chi-Ming Kevin Li, Huanying Ge
  • Nano-composite structure and processes making of
    Patent number: 10190045
    Abstract: A nano-composite structure comprises of an amorphous matrix with embedded nano-crystallites. The nano-crystallites are precipitated from the amorphous matrix via heat treatment of a solution mixture of metal salts or metalorganic compounds to an appropriate temperature range and with a suitable duration, or heating of a mixture of non-crystalline compounds. The nano-crystallites are self-assembled in the amorphous matrix without forming agglomerates or distinguished grain boundaries. The nano-composite structure can be used for transparent display, transparent optical ceramics, protection armor, nuclear protection, pulsed power, high voltage electronics, high energy storage system and high power microwave systems.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: January 29, 2019
    Inventors: Xiaomei Guo, Kewen Kevin Li, Yingyin Kevin Zou, Hua Jiang
  • Personalization according to mood
    Patent number: 10187254
    Abstract: Methods, systems, and products predict emotional moods. Predicted moods may then be used to configure devices and machinery. A communications device may be configured to a mood of a user. A car may adjust to the mood of an operator. Even assembly lines may be configured, based on the mood of operators. Machinery and equipment may thus adopt performance and safety precautions that account for varying moods.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: January 22, 2019
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Kevin A. Li, Troy C. Meuninck, Robert Raymond Miller, II, James H. Pratt, Horst J. Schroeter, Behzad Shahraray
  • Routing policies for biological hosts
    Patent number: 10163055
    Abstract: Methods, systems, and products provide interfaces between intrahost networks and interhost networks within biological hosts. Neuroregional translations are performed to route communications to and from the biological hosts. Bioregional translations may also be performed to route communications to and from the biological hosts.
    Type: Grant
    Filed: April 19, 2015
    Date of Patent: December 25, 2018
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Kevin A. Li, Troy C. Meuninck, Robert Raymond Miller, II, James H. Pratt, Horst J. Schroeter, Behzad Shahraray