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).
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Publication number: 20240126816Abstract: 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: ApplicationFiled: September 29, 2023Publication date: April 18, 2024Inventors: Jorge Luis Issa Garcia, Teck Hua Lee, Sheldon Andre Kevin Lewis, Bangalore Prashanth, Hui Joe Chang, Zhen Hua Liu, Aurosish Mishra, Shasank K. Chavan
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Publication number: 20240116386Abstract: 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: ApplicationFiled: October 5, 2023Publication date: April 11, 2024Applicant: 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
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Publication number: 20240116995Abstract: 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: ApplicationFiled: May 31, 2023Publication date: April 11, 2024Applicant: 89BIO LTD.Inventors: Karla K. KOPEC, Patrick Mengyuan LIU
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Publication number: 20240093939Abstract: 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: ApplicationFiled: September 14, 2023Publication date: March 21, 2024Inventors: Hongbin Ma, Ramy Abdelhady, Shahabeddin K. Mohammadian, Jeremy Spitzenberger, Xiaoqin Susan Liu
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Patent number: 11931799Abstract: 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: GrantFiled: August 26, 2021Date of Patent: March 19, 2024Assignee: Additive Technologies LLCInventors: Paul J. McConville, Douglas K. Herrmann, Seemit Praharaj, Jason M. LeFevre, Chu-Heng Liu
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Patent number: 11934712Abstract: 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: GrantFiled: November 17, 2021Date of Patent: March 19, 2024Assignee: Xerox CorporationInventors: Jason LeFevre, Douglas K. Herrmann, Chu-heng Liu, Seemit Praharaj
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Publication number: 20240083165Abstract: 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: ApplicationFiled: September 14, 2022Publication date: March 14, 2024Inventors: Seemit Praharaj, Jason M. LeFevre, Douglas K. Herrmann, Chu-Heng Liu, Jorge A. Alvarez
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Patent number: 11912045Abstract: 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: GrantFiled: March 24, 2022Date of Patent: February 27, 2024Assignee: Xerox CorporationInventors: Jason M. LeFevre, Seemit Praharaj, Douglas K. Herrmann, Chu-Heng Liu, Jorge A. Alvarez
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Publication number: 20230221564Abstract: 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: ApplicationFiled: March 15, 2023Publication date: July 13, 2023Applicant: Magic Leap, Inc.Inventors: Robert D. Tekolste, Victor K. Liu
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Patent number: 11635626Abstract: 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: GrantFiled: June 4, 2021Date of Patent: April 25, 2023Assignee: Magic Leap, Inc.Inventors: Robert D. Tekolste, Victor K. Liu
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Publication number: 20230025888Abstract: 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: ApplicationFiled: July 25, 2022Publication date: January 26, 2023Inventor: Joseph K. Liu
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Publication number: 20230018705Abstract: 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: ApplicationFiled: October 17, 2019Publication date: January 19, 2023Inventors: James K. Liu, Daniel Abate-Daga, Cecilia Ramello
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Patent number: 11414128Abstract: 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: GrantFiled: August 9, 2021Date of Patent: August 16, 2022Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu
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Publication number: 20210364805Abstract: 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: ApplicationFiled: June 4, 2021Publication date: November 25, 2021Applicant: Magic Leap, Inc.Inventors: Robert D. Tekolste, Victor K. Liu
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Patent number: 11130519Abstract: 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: GrantFiled: May 18, 2021Date of Patent: September 28, 2021Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu
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Patent number: 11054655Abstract: 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: GrantFiled: April 1, 2020Date of Patent: July 6, 2021Assignee: Magic Leap, Inc.Inventors: Robert D. Tekolste, Victor K. Liu
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Patent number: 11015664Abstract: 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: GrantFiled: January 25, 2021Date of Patent: May 25, 2021Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu
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Patent number: 10983263Abstract: 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: GrantFiled: August 22, 2017Date of Patent: April 20, 2021Assignee: Magic Leap, Inc.Inventors: David Kleinman, Samarth Bhargava, Victor K. Liu, David Jurbergs
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Patent number: 10800030Abstract: 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: GrantFiled: May 13, 2020Date of Patent: October 13, 2020Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu
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Patent number: 10730729Abstract: 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: GrantFiled: February 26, 2020Date of Patent: August 4, 2020Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu