Patents by Inventor K. Liu

K. Liu 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).

  • Publication number: 20240126816
    Abstract: Herein is database query acceleration from dynamic discovery of whether contents of a persistent column can be stored in an accelerated representation in storage-side memory. In an embodiment, based on data type discovery, a storage server detects that column values in a persistent column have a particular data type. Based on storage-side metadata including a frequency of access of the persistent column as an offload input column for offload computation requests on a certain range of memory addresses, the storage server autonomously decides to generate and store, in storage-side memory in the storage server, an accelerated representation of the persistent column that is based on the particular data type. The storage server receives a request to perform an offload computation for the offload input column. Based on the accelerated representation of the persistent column, execution of the offload computation is accelerated.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 18, 2024
    Inventors: Jorge Luis Issa Garcia, Teck Hua Lee, Sheldon Andre Kevin Lewis, Bangalore Prashanth, Hui Joe Chang, Zhen Hua Liu, Aurosish Mishra, Shasank K. Chavan
  • Publication number: 20240116386
    Abstract: Utility vehicles include ground engaging members, a frame supported by the ground engaging members, a motor supported by the frame operably coupled to the ground engaging members, and a battery configured to provide electrical power to the motor. The battery may be removable and configured to be easily charged by outside power sources such as generators and external batteries. A charger may be configured to receive instructions to charge the battery using a specific charger operating characteristic. The vehicle may also include a variety of accessory ports configured to electrically couple to accessories that use AC or DC power.
    Type: Application
    Filed: October 5, 2023
    Publication date: April 11, 2024
    Applicant: Polaris Industries Inc.
    Inventors: Yassin M. Kelay, David F. Buehler, Chiao George Liu, Aaron D. Deckard, Jacob Gerten, Benjamin R. Bauer, Akshay A. Biyani, Naval K. Agrawal, Kathryn L. Johnson, Austin A. Holt
  • Publication number: 20240116995
    Abstract: The present invention relates to a mutant Fibroblast Growth Factor-21 (FGF-21) peptide conjugate comprising a PEG moiety attached to a mutant FGF-21 peptide via a glycosyl linker and uses thereof. Further provided is a method for producing the mutant FGF-21 peptide conjugate and a pharmaceutical composition and container comprising said mutant FGF-21 peptide conjugate.
    Type: Application
    Filed: May 31, 2023
    Publication date: April 11, 2024
    Applicant: 89BIO LTD.
    Inventors: Karla K. KOPEC, Patrick Mengyuan LIU
  • Publication number: 20240093939
    Abstract: An efficient heat pump ejector vacuum dryer system and associated method of use for drying items that includes a drying vessel having a condenser and having a first evaporator where the first evaporator has an input that is connected to an output of the first expansion valve, a first expansion valve connected in fluid communication between the condenser and the first evaporator, a second expansion valve connected between the condenser and the second evaporator, a compressor having an input connected to an output of the first evaporator, an ejector that receives a vapor stream from an output of the compressor and receives a vapor stream from the output of the second evaporator generates as an output a high-temperature vapor provided to a condenser of the drying vessel to dry the items and generate an output of moisture, and a water reservoir that accumulates water from the drying vessel.
    Type: Application
    Filed: September 14, 2023
    Publication date: March 21, 2024
    Inventors: Hongbin Ma, Ramy Abdelhady, Shahabeddin K. Mohammadian, Jeremy Spitzenberger, Xiaoqin Susan Liu
  • Patent number: 11931799
    Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with a movable directed energy source to melt hardened metal drops and form an oxidation layer. A metal support structure can be formed over the oxidation layer, an object feature can be formed over the oxidation layer, or both a metal support structure and an object feature can be formed over oxidation layers located at opposite sides of a metal support structure. The oxidation layers weakly attach the metal support structure to the object feature supported by the metal support structure so the support structure can be easily removed after manufacture of the object is complete.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: March 19, 2024
    Assignee: Additive Technologies LLC
    Inventors: Paul J. McConville, Douglas K. Herrmann, Seemit Praharaj, Jason M. LeFevre, Chu-Heng Liu
  • Patent number: 11934712
    Abstract: A method of automatically diagnosing media handling defects on sheets, the method including receiving a first image of a first sheet, determining that the first image includes a detected media handling defect, determining that the detected media handling defect matches one or more known media handling defects in a database, and displaying a rectifying action.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: March 19, 2024
    Assignee: Xerox Corporation
    Inventors: Jason LeFevre, Douglas K. Herrmann, Chu-heng Liu, Seemit Praharaj
  • Publication number: 20240083165
    Abstract: A method of operating a printer identifies image areas in ink image content data that are likely to affected by airflow disturbances to produce ink blur within an ink image. Inkjets farthest from these areas are selected to eject ink drops into these areas to form portions of an ink image. The image areas identified as being likely to produce ink blur are the leading edge, trailing edge, and side edge of the ink image content data. The ink drops ejected by these selected inkjets and their satellites are less likely to be affected adversely by the airflow disturbances.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 14, 2024
    Inventors: Seemit Praharaj, Jason M. LeFevre, Douglas K. Herrmann, Chu-Heng Liu, Jorge A. Alvarez
  • Patent number: 11912045
    Abstract: A method of operating a printer evaluates the effect of printing a print job with two different orientations of the image content data for the print job. The orientation that produces the least increase in the cross-process direction displacement error for the inkjets in the printer is selected for printing the print job. By attenuating the increase in cross-process direction displacement error, the interval between printhead maintenance operations is increased.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: February 27, 2024
    Assignee: Xerox Corporation
    Inventors: Jason M. LeFevre, Seemit Praharaj, Douglas K. Herrmann, Chu-Heng Liu, Jorge A. Alvarez
  • Publication number: 20230221564
    Abstract: An eyepiece for use in front of an eye of a viewer includes a waveguide having a surface and a diffractive optical element (DOE) optically coupled to the waveguide. The DOE includes a plurality of first ridges protruding from the surface of the waveguide and arranged as a periodic array having a period, each respective first ridge has a first height and a respective first width. The DOE also includes a plurality of second ridges, each respective second ridge protruding from a respective first ridge and having a second height greater than the first height and a respective second width less than the respective first width. At least one of the respective first width, the respective second width, or a respective ratio between the respective first width and the respective second width varies as a function of a distance from a first edge of the DOE.
    Type: Application
    Filed: March 15, 2023
    Publication date: July 13, 2023
    Applicant: Magic Leap, Inc.
    Inventors: Robert D. Tekolste, Victor K. Liu
  • Patent number: 11635626
    Abstract: An eyepiece for use in front of an eye of a viewer includes a waveguide configured to propagate light therein, and a diffractive optical element optically coupled to the waveguide. The diffractive optical element includes a plurality of first ridges protruding from a surface of the waveguide. Each of the plurality of first ridges has a first height and a first width. The diffractive optical element further includes a plurality of second ridges. Each of the plurality of second ridges protrudes from a respective first ridge and has a second height greater than the first height and a second width less than the first width. The diffractive optical element is configured to diffract a portion of a light beam incident on the diffractive optical element toward the eye as a first order transmission.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: April 25, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Robert D. Tekolste, Victor K. Liu
  • Publication number: 20230025888
    Abstract: The subject matter contained herein relates to a programmable electronic display that can be controlled by a mobile device, such as a cell phone. Said display is configured to be placed for view outside a vehicle, such as the rear window of a car or a truck bed gate or on top of the roof of a car.
    Type: Application
    Filed: July 25, 2022
    Publication date: January 26, 2023
    Inventor: Joseph K. Liu
  • Publication number: 20230018705
    Abstract: Compositions and methods are disclosed for targeted treatment of lung cancer-derived metastatic brain tumors. In particular, tumor targeting agents comprising targeting peptides are disclosed that can target a payload, such as a therapeutic or diagnostic agent, to lung cancer-derived metastatic brain tumors. Chimeric antigen receptor (CAR) polypeptides are disclosed that can be used with adoptive cell transfer to target and kill lung cancer-derived metastatic brain tumors.
    Type: Application
    Filed: October 17, 2019
    Publication date: January 19, 2023
    Inventors: James K. Liu, Daniel Abate-Daga, Cecilia Ramello
  • Patent number: 11414128
    Abstract: The multiple maneuvering systems for various applications includes several embodiments of wheeled, multiple maneuvering systems including multiple parallel maneuvering systems (MPMS). Each MPMS includes two or more parallel maneuvering units (PMUs) attached to one another by a connecting structure. Each PMU includes two or more powered or non-powered wheels, with the wheels being maintained parallel to one another by a steering mechanism. The steering mechanism may include gears, belt and pulley, chain and sprocket, or a rigid linkage. The connecting structure may be rigid, linearly adjustable, rotatable adjustable or both linearly and rotatable adjustable. The adjustable connecting structures allow for relative movement between the PMUs, while maintaining a load support surface(s) of the MPMSs.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: August 16, 2022
    Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu
  • Publication number: 20210364805
    Abstract: An eyepiece for use in front of an eye of a viewer includes a waveguide configured to propagate light therein, and a diffractive optical element optically coupled to the waveguide. The diffractive optical element includes a plurality of first ridges protruding from a surface of the waveguide. Each of the plurality of first ridges has a first height and a first width. The diffractive optical element further includes a plurality of second ridges. Each of the plurality of second ridges protrudes from a respective first ridge and has a second height greater than the first height and a second width less than the first width. The diffractive optical element is configured to diffract a portion of a light beam incident on the diffractive optical element toward the eye as a first order transmission.
    Type: Application
    Filed: June 4, 2021
    Publication date: November 25, 2021
    Applicant: Magic Leap, Inc.
    Inventors: Robert D. Tekolste, Victor K. Liu
  • Patent number: 11130519
    Abstract: The parallel maneuvering system is a steering system for portable devices, portable platforms and the like, allowing individual wheels to be steered in a parallel and simultaneous manner. The parallel maneuvering system includes a first coupler and a second coupler, which are slidably mounted with respect to one another, and which each include a pair of arms for eccentric pivotal attachment to a corresponding pair of wheel assemblies. The first and second couplers are mounted within a hollow chassis, and the wheel assemblies are mounted to the hollow chassis such that respective wheels thereof are mounted external to the hollow chassis, and respective eccentric crank arms thereof are mounted within the hollow chassis. At least one linear actuator may be provided for selectively driving sliding movement of the first coupler with respect to the second coupler.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: September 28, 2021
    Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu
  • Patent number: 11054655
    Abstract: An eyepiece for use in front of an eye of a viewer includes a waveguide configured to propagate light therein, and a diffractive optical element optically coupled to the waveguide. The diffractive optical element includes a plurality of first ridges protruding from a surface of the waveguide. Each of the plurality of first ridges has a first height and a first width. The diffractive optical element further includes a plurality of second ridges. Each of the plurality of second ridges protrudes from a respective first ridge and has a second height greater than the first height and a second width less than the first width. The diffractive optical element is configured to diffract a portion of a light beam incident on the diffractive optical element toward the eye as a first order transmission.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: July 6, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Robert D. Tekolste, Victor K. Liu
  • Patent number: 11015664
    Abstract: The rotation-actuated drum brake uses both inner and outer sets of brake shoes, which are actuated in a radial manner, to contact the inner and outer surfaces of a cylindrical brake drum. The inner and outer sets of brake shoes are disposed within an annular brake housing and are constrained to move radially. An actuator selectively drives rotation of a rotating disc having a plurality of arcuate slots defined therein. This drives roller guides of the inner and outer sets of brake shoes to roll within respective ones of the arcuate slots. The driven rolling of the roller guides drives the radial motion of the inner and outer sets of brake shoes to simultaneously frictionally engage the inner and outer surfaces of the cylindrical brake drum.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: May 25, 2021
    Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu
  • Patent number: 10983263
    Abstract: An eyepiece and waveguide for viewing a projected image in a virtual reality and augmented reality imaging and visualization system. The waveguide may include a substrate for guiding light. The waveguide may also include an incoupling diffractive element disposed within or on the substrate and configured to diffract an incoupled light related to the projected image into the substrate. The waveguide may further include a first grating disposed within or on the substrate and configured to manipulate the diffracted incoupled light from the incoupling diffractive element so as to multiply the projected image and to direct the multiplied projected image to a second grating. The second grating may be disposed within or on the substrate and may be configured to outcouple the manipulated diffracted incoupled light from the waveguide. The first grating and the second grating may occupy a same region of the waveguide.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: April 20, 2021
    Assignee: Magic Leap, Inc.
    Inventors: David Kleinman, Samarth Bhargava, Victor K. Liu, David Jurbergs
  • Patent number: 10800030
    Abstract: The mobile work station with versatile tool handler arm is a mobile work station that carries a tool handler arm that can manipulate a tool in multiple global degrees of freedom. The work station has a base housing mounted on a plurality of wheels. A vertical post is mounted on top of the base housing, the vertical post having relative rotation to the base housing. An elongate tool handler arm is pivotally mounted medially at the top of the vertical post, the tool handler arm being defined by a 4-bar linkage including an upper link, a lower link, and front and rear crank blocks pin-jointed together. An elongate handlebar connected to the rear end of the tool provides control of the tool handler, and a tool carrier attached to the front end allows selective attachment of any one of a variety of tools.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: October 13, 2020
    Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu
  • Patent number: 10730729
    Abstract: The scissor lift includes a horizontally collapsible base, a vertically collapsible frame mounted on the base, a horizontally foldable platform mounted on top of the vertically collapsible frame, and a plurality of wheels mounted on the base. The horizontally and vertically collapsible scissor lift is steerable and the plurality of wheels may be coupled such that they each rotate about a vertical axis synchronously with respect to one another to steer the lift. Further, at least one of the wheels may be self-driving to controllably propel the horizontally and vertically collapsible scissor lift. One or more winches with associated cables may be used to selectively raise and lower the vertically collapsible frame.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: August 4, 2020
    Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu