Patents by Inventor Fengying Li

Fengying 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).

  • Publication number: 20170226159
    Abstract: A method for producing a purified peptide from a supported crude peptide having a support and a first peptide chain bonded to the support at the C-terminus. The method includes: introducing a linker and a hydrophilic unit to an amino group of the first peptide chain of the supported crude peptide; cleaving a bond between the first peptide chain and the support before or after at least one of the linker and the hydrophilic unit is introduced to the amino group of the first peptide chain such that a support-free hydrophilized peptide is obtained; treating the support-free hydrophilized peptide by liquid chromatography; and cleaving a bond between the linker and the first peptide chain in the support-free hydrophilized peptide by chemical treatment after the liquid chromatography treatment such that a peptide including the first peptide chain is obtained.
    Type: Application
    Filed: September 25, 2015
    Publication date: August 10, 2017
    Applicants: KANEKA CORPORATION, AnaSpec, Inc.
    Inventors: Keishi TAKATSU, Hirofumi MAEDA, Akio FUJII, Fengying LI, Xoapbing WANG
  • Patent number: 7993689
    Abstract: Methods for the production of substrate, tuber, and grain compositions containing isomalto-oligosaccharides are described. The methods comprise (a) contacting a substrate, tuber or grain containing ungelatinized starch with a maltogenic enzyme and a starch liquefying enzyme to produce maltose; (b) contacting the maltose with a transglucosidic enzyme, wherein the steps (a) and (b) occur at a temperature less than or at a starch gelatinization temperature; and (c) obtaining a substrate, grain or tuber composition having an enzymatically produced isomalto-oligosaccharide, wherein the oligosaccharide is derived from the grain. The maltogenic enzyme can be either exogenous or endogenous to the grain. The contacting steps can be sequential or concurrent. The present invention also describes flour, oral rehydrating solutions, beer adjuncts, food, feed, beverage additives incorporating the grain compositions made as described.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: August 9, 2011
    Assignee: Danisco US Inc.
    Inventors: Gang Duan, Fengi Li, Jayarama K. Shetty, Julius Vadakoot, Sridevi Vadakoot, legal representative
  • Patent number: 7737302
    Abstract: This invention described a synthesis method of bupropion hydrochloride. m-chloropropiophenone was brominated directly with bromine, then aminated with t-butylamine and finally reacted with HCl to obtain crude product of bupropion hydrochloride. Pure product was obtained after recrystallization. This method is convenient and suitable for commercial manufacturing because of low cost of production, high yield, less byproducts and being environmental friendly.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: June 15, 2010
    Assignee: Zhejiang Apeloa Medical Technology Co., Ltd.
    Inventors: Chaogang Wu, Huayou Xiang, Xianghua Yu, Chun He, Fengying Li, Xianghong Shi, Chengyue Lu, Guoliang Chen, Yangxiang Ge
  • Publication number: 20090012328
    Abstract: This invention described a synthesis method of bupropion hydrochloride. m-chloropropiophenone was brominated directly with bromine, then aminated with t-butylamine and finally reacted with HCl to obtain crude product of bupropion hydrochloride. Pure product was obtained after recrystallization. This method is convenient and suitable for commercial manufacturing because of low cost of production, high yield, less byproducts and being environmental friendly.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 8, 2009
    Inventors: Chaogang Wu, Huayou Xiang, Xianghua Yu, Chun He, Fengying Li, Xianghong Shi, Chengyue Lu, Guoliang Chen, Yangxiang Ge
  • Patent number: D961147
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: August 16, 2022
    Assignee: SHENZHEN HONGWEI TRADING CO., LTD.
    Inventor: Fengying Li
  • Patent number: D1056315
    Type: Grant
    Filed: May 27, 2024
    Date of Patent: December 31, 2024
    Inventor: Fengying Li