Patents by Inventor Guohua Chen

Guohua Chen 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: 20190167801
    Abstract: An injectable, nonaqueous suspension including at least one therapeutic agent suspended in a single component vehicle. The single component vehicle is a single amphiphilic material, such as a polyethoxylated castor oil or derivative thereof, a polyoxyethylene alkyl ether, a polyoxyethylene sorbitan fatty acid ester, a polyoxyethylene stearate, a block copolymer of polyethylene oxide-polypropylene oxide-polyethylene oxide, a block copolymer of polypropylene oxide-polyethylene oxide-polypropylene oxide, a tetra-functional block copolymer of polyethylene oxide-polypropylene oxide, or a tetra-functional block copolymer of polypropylene oxide-polyethylene oxide. A dosage kit that includes the injectable, nonaqueous suspension and a method of administering the injectable, nonaqueous suspension are also disclosed.
    Type: Application
    Filed: October 29, 2018
    Publication date: June 6, 2019
    Applicant: Durect Corporation
    Inventors: Paul R. Houston, Guohua Chen, Andrew Sheung-King Luk
  • Patent number: 10303479
    Abstract: A branch predictor, has a plurality of memory banks having entries that hold prediction information used to predict a direction of branch instructions fetched and executed by a processor that comprises the branch predictor. A count of events that occur in the processor is provided to hardware logic that performs an arithmetic and/or logical operation, e.g., XOR, on predetermined bits of the count to generate a random value. In response to the processor determining a correct direction of a branch instruction predicted by the branch predictor, the branch predictor uses the random value generated by the hardware logic to make a decision about updating the memory banks. Bits of a branch history pattern, along with the count, may also be used to generate the random value. The event counted may be a retire of an instruction or a cycle of a core or bus clock.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: May 28, 2019
    Assignee: VIA ALLIANCE SEMICONDUCTOR CO., LTD
    Inventors: Mengchen Yang, Guohua Chen, Xiaoling Wang
  • Patent number: 10238848
    Abstract: In an aspect of the invention, an array of microprotrusions is formed by providing a mold with cavities corresponding to the negative of the microprotrusions, casting atop the mold a first solution comprising a biocompatible material and a solvent, removing the solvent, casting a second solution atop the first cast solution, removing the solvent from the second solution, and demolding the resulting array from the mold. The first solution preferably contains an active ingredient.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: March 26, 2019
    Assignee: Corium International, Inc.
    Inventors: Parminder Singh, Robert Wade Worsham, Joseph C. Trautman, Danir Bayamov, Danny Lee Bowers, Andrew Richard Klemm, Steven Richard Klemm, Guohua Chen
  • Patent number: 10209993
    Abstract: A branch predictor has a block address useable to access a block of instruction bytes of an instruction cache and first/second byte offsets within the block of instruction bytes. Hashing logic hashes a branch pattern and respective first/second address formed from the block address and the respective first/second byte offsets to generate respective first/second indexes. A conditional branch predictor receives the first/second indexes and in response provides respective first/second direction predictions of first/second conditional branch instructions in the block of instruction bytes. In one embodiment, a branch target address cache (BTAC) provides the byte offsets, and the first/second direction predictions are statically associated with first/second target addresses also provided by the BTAC.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: February 19, 2019
    Assignee: VIA ALLIANCE SEMICONDUCTOR CO., LTD.
    Inventors: Xiaoling Wang, Mengchen Yang, Guohua Chen
  • Patent number: 10201496
    Abstract: Methods and compositions for systemically or locally administering by implantation a beneficial agent to a subject are described, and include, for example, depot gel compositions that can be injected into a desired location and which can provide controlled release of a beneficial agent over a short duration of time. The compositions include a low molecular weight biocompatible polymer, a biocompatible solvent having low water miscibility that forms a viscous gel with the polymer and limits water uptake by the implant, and a beneficial agent.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: February 12, 2019
    Assignee: Durect Corporation
    Inventors: Guohua Chen, David T. Priebe
  • Publication number: 20180325905
    Abstract: An injectable depot formulation includes a biocompatible polymer, an organic solvent combined with the biocompatible polymer to form a viscous gel, and a small molecule drug incorporated in the viscous gel such that the formulation exhibits an in vivo release profile having a Cmax to Cmin ratio of less than 200 and a lag time less than 0.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Inventors: Andrew S. LUK, Gunjan H. JUNNARKAR, Guohua CHEN
  • Publication number: 20180320067
    Abstract: A method for preparing a graphene/MnO2 porous material having a high infrared emissivity; the method adopts graphene and potassium permanganate as raw materials, and uses a simple ultrasonic dispersion method to uniformly disperse the graphene and the potassium permanganate in the water solution; subsequently, the graphene/MnO2 porous material can be obtained through the hydrothermal reaction; the present invention is simple and easy-operating, and the infrared emissivity of the porous material prepared according to the method of the present invention is 0.94-0.98 at a distance of 8-14 ?m, which is stable, eco-friendly, and can be widely applied to far-infrared products.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 8, 2018
    Inventors: Aie Ding, Guohua Chen, Yihong Zhang
  • Publication number: 20180311621
    Abstract: Disclosed herein are filtration articles comprising a porous ceramic structure comprising a plurality of channels separated by a plurality of porous interior walls, and a nanomembrane disposed on at least a portion of a surface of the porous ceramic structure, wherein the nanomembrane comprises nanoparticles of at least one inorganic oxide, and wherein the nanoparticles are present in a concentration ranging from about 0.001 g/L to about 1 g/L based on the total volume of the porous ceramic structure. Methods for making such filtration articles and methods for filtering a particulate from a fluid using such filtration articles are also disclosed herein.
    Type: Application
    Filed: October 28, 2016
    Publication date: November 1, 2018
    Inventors: Guohua Chen, Curtis Robert Fekety, Jianguo Wang, Huiqing Wu
  • Publication number: 20180276172
    Abstract: The utility model discloses a circuit for inhibiting single-ended analogue signal noises and a terminal accessory. The circuit includes an input interface module, a differential amplification module, an analogue signal processing module, an isolation module and a control module, wherein the input interface module at least includes an analogue signal line and a digital signal line, the differential amplification module includes differential input ends and an output end; the analogue signal line and the digital signal line of the input interface module are respectively connected to the differential input ends of the differential amplification module, so that the analogue signal line and the digital signal line form a pseudo-differential pair, and the output end of the differential amplification module is connected to the analogue signal processing module; the digital signal line is further connected to the isolation module, and the isolation module is further connected to the control module.
    Type: Application
    Filed: July 10, 2015
    Publication date: September 27, 2018
    Inventors: Guohua CHEN, Zhiqiang CHEN
  • Patent number: 10058554
    Abstract: An injectable depot formulation includes a biocompatible polymer, an organic solvent combined with the biocompatible polymer to form a viscous gel, and a small molecule drug incorporated in the viscous gel such that the formulation exhibits an in vivo release profile having Cmax to Cmin ratio less than 200 and lag time less than 0.2.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: August 28, 2018
    Assignee: Indivior UK Limited
    Inventors: Andrew S. Luk, Gunjan H. Junnarkar, Guohua Chen
  • Publication number: 20180136937
    Abstract: A branch predictor, has a plurality of memory banks having entries that hold prediction information used to predict a direction of branch instructions fetched and executed by a processor that comprises the branch predictor. A count of events that occur in the processor is provided to hardware logic that performs an arithmetic and/or logical operation, e.g., XOR, on predetermined bits of the count to generate a random value. In response to the processor determining a correct direction of a branch instruction predicted by the branch predictor, the branch predictor uses the random value generated by the hardware logic to make a decision about updating the memory banks. Bits of a branch history pattern, along with the count, may also be used to generate the random value. The event counted may be a retire of an instruction or a cycle of a core or bus clock.
    Type: Application
    Filed: November 30, 2016
    Publication date: May 17, 2018
    Inventors: MENGCHEN YANG, GUOHUA CHEN, XIAOLING WANG
  • Patent number: 9962534
    Abstract: Devices and methods for using and manufacturing microstructure arrays are described.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 8, 2018
    Assignee: Corium International, Inc.
    Inventors: Guohua Chen, Zhongli Ding, Esi Ghartey-Tagoe, Ashutosh Shastry, Robert Wade Worsham, Parminder Singh
  • Publication number: 20180101385
    Abstract: A branch predictor has a block address useable to access a block of instruction bytes of an instruction cache and first/second byte offsets within the block of instruction bytes. Hashing logic hashes a branch pattern and respective first/second address formed from the block address and the respective first/second byte offsets to generate respective first/second indexes. A conditional branch predictor receives the first/second indexes and in response provides respective first/second direction predictions of first/second conditional branch instructions in the block of instruction bytes. In one embodiment, a branch target address cache (BTAC) provides the byte offsets, and the first/second direction predictions are statically associated with first/second target addresses also provided by the BTAC.
    Type: Application
    Filed: October 25, 2016
    Publication date: April 12, 2018
    Inventors: XIAOLING WANG, MENGCHEN YANG, GUOHUA CHEN
  • Publication number: 20170348392
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: June 19, 2017
    Publication date: December 7, 2017
    Inventors: Catherine M. ROHLOFF, Guohua CHEN, Andrew S. LUK, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Publication number: 20170319702
    Abstract: An injectable, nonaqueous suspension including at least one therapeutic agent suspended in a single component vehicle. The single component vehicle is a single amphiphilic material, such as a polyethoxylated castor oil or derivative thereof, a polyoxyethylene alkyl ether, a polyoxyethylene sorbitan fatty acid ester, a polyoxyethylene stearate, a block copolymer of polyethylene oxide-polypropylene oxide-polyethylene oxide, a block copolymer of polypropylene oxide-polyethylene oxide-polypropylene oxide, a tetra-functional block copolymer of polyethylene oxide-polypropylene oxide, or a tetra-functional block copolymer of polypropylene oxide-polyethylene oxide. A dosage kit that includes the injectable, nonaqueous suspension and a method of administering the injectable, nonaqueous suspension are also disclosed.
    Type: Application
    Filed: May 1, 2017
    Publication date: November 9, 2017
    Applicant: Durect Corporation
    Inventors: Paul R. Houston, Guohua Chen, Andrew Luk
  • Publication number: 20170281535
    Abstract: A method and a drug delivery system for transdermally administering parathyroid hormone (PTH) in a pulsatile fashion are provided, where the drug delivery system comprises an array of microprojections each comprising PTH.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 5, 2017
    Inventors: Parminder Singh, Danir Bayramov, Guohua Chen, Robert Wade Worsham
  • Publication number: 20170239252
    Abstract: An injectable depot formulation includes a biocompatible polymer, an organic solvent combined with the biocompatible polymer to form a viscous gel, and a small molecule drug incorporated in the viscous gel such that the formulation exhibits an in vivo release profile having Cmax to Cmin ratio less than 200 and lag time less than 0.2.
    Type: Application
    Filed: February 2, 2017
    Publication date: August 24, 2017
    Applicant: DURECT CORPORATION
    Inventors: Andrew S. LUK, Gunjan H. JUNNARKAR, Guohua CHEN
  • Patent number: 9687641
    Abstract: A method and a drug delivery system for transdermally administering parathyroid hormone (PTH) in a pulsatile fashion are provided, where the drug delivery system comprises an array of microprojections each comprising PTH.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: June 27, 2017
    Assignee: Corium International, Inc.
    Inventors: Parminder Singh, Danir Bairamov, Guohua Chen, Robert Wade Worsham
  • Publication number: 20170087086
    Abstract: Methods and compositions for systemically or locally administering by implantation a beneficial agent to a subject are described, and include, for example, depot gel compositions that can be injected into a desired location and which can provide controlled release of a beneficial agent over a short duration of time. The compositions include a low molecular weight biocompatible polymer, a biocompatible solvent having low water miscibility that forms a viscous gel with the polymer and limits water uptake by the implant, and a beneficial agent.
    Type: Application
    Filed: September 15, 2016
    Publication date: March 30, 2017
    Applicant: DURECT CORPORATION
    Inventors: Guohua Chen, David T. Priebe
  • Patent number: D838886
    Type: Grant
    Filed: December 24, 2016
    Date of Patent: January 22, 2019
    Inventor: Guohua Chen