Patents by Inventor Fuqing YAO

Fuqing YAO 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).

  • COMPOSITION CONTAINING LEGOAMODIPINE BESYLATE HYDRATE AND PREPARATION METHOD THEREFOR
    Publication number: 20220401427
    Abstract: The present invention relates to a composition comprising levamlodipine besylate hydrate and its production, pharmaceutical preparations and use, especially the composition of (S)-2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-6-methyl-1,4-dihydro-3,5-pyridinedicarboxylic acid-3-ethyl ester, 5-methyl ester benzenesulfonic acid hydrate and its production method and use. The composition of levamlodipine besylate crystallized in pure water and dried is easy for industrial production, has no organic solvent residue, good thermal stability and good dissolution amount in solid-form preparations.
    Type: Application
    Filed: October 26, 2020
    Publication date: December 22, 2022
    Applicants: SHIHUIDA PHARMACEUTICALS GROUP (JILIN) LTD., BEIJING WUWEI ERCHUANG TECHNOLOGY CO., LTD.
    Inventors: Huan LI, Fuqing YAO, Xitian ZHANG