Patents by Inventor Yanfeng Zhang

Yanfeng Zhang 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: 20160347722
    Abstract: Novel salts and cocrystals of lesinurad, processes for their preparation, pharmaceutical compositions comprising these new salt forms and co-crystals, and use of them for treating or delaying progression or onset of diseases or disorders related to activity of uric acid transport 1 (URAT1) proteins are disclosed. These novel forms were characterized by X-ray powder diffraction, differential scanning calorimetry, and other techniques. They can be readily prepared and are suitable for preparation of solid dosage forms owing to their ease of handling and superior pharmacological properties.
    Type: Application
    Filed: December 19, 2014
    Publication date: December 1, 2016
    Applicants: CRYSTAL PHARMATECH CO., LTD., SUZHOU PENGXU PHARMATECH CO., LTD.
    Inventors: Minhua CHEN, Yanfeng ZHANG, Chaohui YANG, Xiaoyu ZHANG, Peng WANG, Pixu LI
  • Patent number: 9496229
    Abstract: The invention provides transient devices, including active and passive devices that physically, chemically and/or electrically transform upon application of at least one internal and/or external stimulus. Incorporation of degradable device components, degradable substrates and/or degradable encapsulating materials each having a programmable, controllable and/or selectable degradation rate provides a means of transforming the device. In some embodiments, for example, transient devices of the invention combine degradable high performance single crystalline inorganic materials with selectively removable substrates and/or encapsulants.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: November 15, 2016
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: John A. Rogers, Seung-Kyun Kang, SukWon Hwang, Jianjun Cheng, Yanfeng Zhang, Hanze Ying
  • Publication number: 20160311729
    Abstract: A catalyst for methanation of carbon dioxide, a method of preparing the catalyst, and a method of hydrogenating carbon dioxide in the presence of the catalyst in a fixed bed reactor are disclosed. The catalyst is formed by mixing ash from a biomass power plant with a nickel compound and calcining the resulting mixture. The catalyst formed by calcination includes between 2 and 20 wt. % of nickel supported on ash from combusting biomass.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 27, 2016
    Inventors: Zhilong WANG, Yanfeng ZHANG, Yilong CHEN, Yongjie XUE, Leiming TAO, Zhixiang LUO, Xingcai ZHENG
  • Publication number: 20160311834
    Abstract: The present invention relates to novel Pseudopolymorphs of Compound A, compositions comprising at least one Pseudopolymorph of Compound A, and methods of using the Pseudopolymorphs of Compound A for preparing compositions useful for treating or preventing HCV infection in a patient, wherein Compound A has the structure.
    Type: Application
    Filed: October 24, 2014
    Publication date: October 27, 2016
    Inventors: Michael McNEVIN, Yong LIU, Ian MANGION, Alfred LEE, Joyce STELLABOTT, Benjamin D. SHERRY, Gary MARTIN, Kung-I FENG, Scott SHULTZ, Ryan COHEN, Yanfeng ZHANG
  • Publication number: 20160304353
    Abstract: A method for preparing nano silica and nano calcium carbonate using rice hull ash and flue gas. The method includes: 1) adding rice hull ash to a sodium hydroxide solution, to yield a first mixed solution; stirring and heating the first mixed solution; then filtering the first mixed solution to yield a first filtrate; 2) adding the first filtrate to a reaction still, and diluting the first filtrate; adding polyethylene glycol as a dispersant to the reaction solution; introducing flue gas to the reaction solution; filtering the reaction mixture to yield a first filter cake and a second filtrate; washing the first filter cake to a neural pH, slurrying and drying the first filter cake to yield nano silica; and 3) mixing the second filtrate and a washing solution collected from 2); adding a calcium hydroxide solution to the reaction still, to yield nano calcium carbonate.
    Type: Application
    Filed: June 22, 2016
    Publication date: October 20, 2016
    Inventors: Yilong CHEN, Yanfeng ZHANG, Zhijiu ZHUO, Xingcai ZHENG, Zhangjian FANG, Leiming TAO, Yuting CHENG
  • Patent number: 9469820
    Abstract: A method for recycling carbon dioxide from biomass gasification. The method includes: 1) employing carbon dioxide as a gasifying agent, allowing the carbon dioxide to gasify biomass to yield syngas; 2) cooling the syngas; 3) introduced cooled syngas to a cyclone separator and a gas scrubber for dust removal and purification; 4) allowing purified syngas in 3) to react with the vapor to modify a ratio of hydrogen to carbon monoxide of the syngas; 5) desulfurizing modified syngas to remove H2S and COS therein; 6) decarburizing desulfurized syngas to separate carbon dioxide therein; 7) introducing desulfurized and decarburized syngas to a synthesizing tower to yield oil products and exhaust gas including carbon dioxide; 8) decarburizing the exhaust gas including carbon dioxide and separating the carbon dioxide; and 9) introducing the carbon dioxide separated in 6) and 8) to 1) as the gasifying agent for gasification.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: October 18, 2016
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yanfeng Zhang, Liang Zhang, Minggui Xia, Wenyan Liu
  • Publication number: 20160297778
    Abstract: Novel crystalline forms of lesinurad and its sodium salt, processes for their preparation, pharmaceutical compositions comprising these new forms, and use of them for treating or delaying progression or onset of diseases or disorders related to activity of uric acid transporter 1 (URAT1) proteins are disclosed. These novel forms were characterized by X-ray powder diffraction, differential scanning calorimetry, and other techniques. They can be readily prepared and are suitable for preparation of solid dosage forms owing to their ease of handling and superior pharmacological properties.
    Type: Application
    Filed: November 20, 2014
    Publication date: October 13, 2016
    Applicants: CRYSTAL PHARMATECH CO., LTD, SUZHOU PENGXU PHARMATECH CO., LTD.
    Inventors: Minhua CHEN, Yanfeng ZHANG, Chaohui YANG, Xiaoyu ZHANG, Peng WANG, Pixu LI
  • Publication number: 20160288104
    Abstract: A monolithic catalyst, including cobalt, a metal matrix, a molecular sieve membrane, and an additive. The metal matrix is silver, gold, copper, platinum, titanium, molybdenum, iron, tin, or an alloy thereof. The molecular sieve membrane is mesoporous silica SBA-16 which is disposed on the surface of the metal matrix and is a carrier of the active component and the additive. The thickness of the carrier is between 26 and 67 ?m. The additive is lanthanum, zirconium, cerium, rhodium, platinum, rhenium, ruthenium, titanium, magnesium, calcium, strontium, or a mixture thereof. A method for preparing the monolithic catalyst is also provided.
    Type: Application
    Filed: June 20, 2016
    Publication date: October 6, 2016
    Inventors: Changyuan LI, Qianqian LIU, Dechen SONG, Weiguang YANG, Xiaodong ZHAN, Jiaqi JIN, Yanfeng ZHANG
  • Patent number: 9457913
    Abstract: The present invention relates to a system and method for detecting an aircraft jitter. The aircraft jitter detection system comprises: a jitter detection apparatus, which detects accelerations of pitch and yaw of the aircraft; a data acquisition apparatus, which obtains accelerations in two directions detected by the jitter detection apparatus; and a jitter determination apparatus, which extracts frequency spectrum and energy information of the jitter according to the accelerations in two directions obtained by the data acquisition apparatus, and determines whether the aircraft jitters.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: October 4, 2016
    Assignee: Air China Limited
    Inventors: Jiaju Wu, Zhuping Gu, Lei Huang, Huifeng Ding, Fengliang Zheng, Qifeng Ren, Yanfeng Zhang
  • Publication number: 20160280731
    Abstract: Novel crystalline Forms B, C, and D of canagliflozin, processes for their preparation, pharmaceutical compositions comprising these new Forms, and use of them for treating or delaying progression or onset of diseases or disorders related to activity of sodium-glucose transport proteins are disclosed. These novel Forms were characterized by X-ray powder diffraction, differential scanning calorimetry, and other techniques. They can be readily prepared and are suitable for preparation of solid dosage forms owing to their ease of handling and superior pharmacological properties.
    Type: Application
    Filed: November 11, 2014
    Publication date: September 29, 2016
    Applicant: CRYSTAL PHARMATECH CO., LTD
    Inventors: Minhua CHEN, Yanfeng ZHANG, Yi ZHAO, Ye ZHAO, Xiaoyu ZHANG, Chaohui YANG, Fei LU
  • Publication number: 20160272902
    Abstract: A method for pressurized pyrolysis of biomass in a pressurized pyrolysis furnace, including: 1) crushing and screening biomass; collecting biomass having desired particle sizes; and delivering the biomass having desired particle sizes to a pulse-type feeding system; 2) transporting the biomass to a pyrolysis furnace via the pulse-type feeding system; synchronously initiating microwave and a plasma torch, the microwave producing a microwave field in the pyrolysis furnace, working gas of the plasma torch being ionized for the first time to produce plasma jet entering the pyrolysis furnace; and 3) allowing the syngas generated in 2) to continue moving upwards and introducing the syngas out from the top of the pyrolysis furnace; chilling the syngas; introducing the syngas to a cyclone separator to separate residues; and then cooling and purifying the syngas using a cooling device and a purifying device, respectively, to produce clean syngas.
    Type: Application
    Filed: May 28, 2016
    Publication date: September 22, 2016
    Inventors: Yanfeng ZHANG, Liang ZHANG, Yilong CHEN
  • Patent number: 9410095
    Abstract: A method of gasification of biomass using a gasification island. The gasification island includes: a biomass pre-treatment and storage unit, a biomass feeder, an external heat source, a gasifier, a crude syngas cooling unit, a crude syngas washing unit, a fresh syngas storage unit, and an ash and wastewater treatment unit. The method includes: pre-treating and storing biomass, gasifying the biomass in the gasifier, cooling a crude syngas, washing and removing dust from the crude syngas, and storing fresh syngas.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: August 9, 2016
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yanfeng Zhang, Minggui Xia, Hongtao Nie, Wenyan Liu, Liang Zhang
  • Patent number: 9409775
    Abstract: A method for purifying biomass syngas, including: a) introducing syngas out of a gasifier, through a water-cooling flue to a water-cooling quench tower; b) introducing the syngas from the water-cooling quench tower to a waste heat boiler of a water-tube type and a waste heat boiler of a heat-tube type; c) washing the syngas from the waste heat boiler of the heat-tube type in a Venturi scrubber in the absence of a filler to remove dust; d) introducing the syngas from the Venturi scrubber to a wet electrical dust precipitator for conducting dust removal and tar mist removal; and e) extracting the syngas by a coal gas draft fan, and transporting the syngas to a wet gas tank for storage or to a downstream process for use.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: August 9, 2016
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yanfeng Zhang, Hongtao Nie, Minggui Xia, Wenyan Liu, Liang Zhang
  • Patent number: 9410096
    Abstract: A method for cooling and washing biomass syngas, the method including the following steps: 1) introducing biomass syngas having a temperature of between 1000 and 1100° C., a dust content of less than 20 g/Nm3, and a tar content of less than 3 g/Nm3 to a quench tower for condensing a slag; 2) introducing the biomass syngas after slag condensation to a waste heat boiler for recovering waste heat and condensing a heavy tar in the syngas; 3) introducing the biomass syngas from the waste heat boiler to a scrubbing-cooling tower for removing dust and decreasing a temperature of the syngas; and 4) introducing the biomass syngas after dust removal and temperature decrease from the scrubbing-cooling tower to an electro-precipitator for further removal of the dust and the tar.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 9, 2016
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yanfeng Zhang, Wenyan Liu, Minggui Xia, Liang Zhang
  • Publication number: 20160225023
    Abstract: A method and an apparatus for providing targeted videos are provided. The method comprises transmitting the videos to the user in accordance with the assigned priorities calculated by a matching result between at least one keyword of the browsing history of the user for at least one online shopping website and at least one keyword of the text information from the videos based on a commodity category list.
    Type: Application
    Filed: September 26, 2013
    Publication date: August 4, 2016
    Inventors: Yanfeng ZHANG, Yuntao SHI, Zhigang ZHANG
  • Patent number: 9403687
    Abstract: A method for preparation of amorphous silica from biomass. The method includes pyrolyzing the biomass under anaerobic conditions to yield a pyrolysis gas and solid residues, collecting the pyrolysis gas, and calcining the solid residues under aerobic conditions to yield amorphous silica.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: August 2, 2016
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yanfeng Zhang, Minxia Cao, Hong Li, Qi Rao
  • Patent number: 9388091
    Abstract: A catalyst for methanation of carbon dioxide. The catalyst is formed by mixing ash from a biomass power plant with a nickel compound and calcining the resulting mixture. The catalyst formed by calcination includes between 2 and 20 wt. % of nickel.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: July 12, 2016
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Zhilong Wang, Yanfeng Zhang, Yilong Chen, Yongjie Xue, Leiming Tao, Zhixiang Luo, Xingcai Zheng
  • Publication number: 20160194305
    Abstract: Provided are isocitrate dehydrogenase 2 (IDH2) inhibitor compounds useful for treating cancer and methods of treating cancer, comprising administering to a subject in need thereof a compound described herein. Also provided are polymorphic forms of the IDH2 inhibitor compounds characterized by X Ray powder diffraction patterns, having improved physicochemical properties that influence in vivo dissolution rate for formulation purposes.
    Type: Application
    Filed: August 1, 2014
    Publication date: July 7, 2016
    Inventors: Samuel V. AGRESTA, Chong-Hui GU, David SCHENKEIN, Hua YANG, Liting GUO, Zhen TANG, Jianming WANG, Yanfeng ZHANG, Yan ZHOU
  • Publication number: 20160195455
    Abstract: The present invention relates to a method and device for monitoring performance of an auxiliary power unit (APU) turbine efficiency of an aircraft. The method comprises: obtaining APU messages at multiple time points within a period; obtaining APU startup parameters including at least a rotation speed at a peak of EGT according to the APU messages; calculating a percentage NPA of the rotation speed when the exhausting gas temperature EGT reaches its peak at the APU startup stage relative to the rotation speed in the APU normal operation; calculating the average of the NPA within the period; and determining which of the stable, decline and failure phases the APU turbine efficiency is in according to the average of the NPA.
    Type: Application
    Filed: July 23, 2014
    Publication date: July 7, 2016
    Inventors: Zhuping GU, Chi ZHANG, Lei HUANG, Huifeng DING, Jiaju WU, Yanfeng ZHANG, Hongtao MA, Lei CHEN
  • Publication number: 20160156946
    Abstract: A covert advertising method, apparatus and system are provided. The method, apparatus and system include converting at least one of audio, a visual product representation and a visual service representation in video content into text, searching a database to determine if an identifier for stored advertising content is associated with the text and if an identifier for stored advertising content is associated with the text, requesting the communication of the associated stored advertising content for display.
    Type: Application
    Filed: July 24, 2013
    Publication date: June 2, 2016
    Applicant: THOMSON LICENSING
    Inventors: Yuntao SHI, Zhigang ZHANG, Yanfeng ZHANG