Patents by Inventor Cheng Qiling

Cheng Qiling 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).

  • Patent number: 8686185
    Abstract: The present invention provides an efficient method for mass-producing 2-hydroxy-5-(substituted)phenylalkylamino benzoic acid derivatives represented by specific Chemical formulas or their salts, particularly 2-hydroxy-5-[2-(4-trifluoromethylphenyl)ethylamino]benzoic acid or its salt.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: April 1, 2014
    Assignee: Neurotech Pharmaceuticals Co., Ltd.
    Inventors: Byoung Joo Gwag, Jae Young Cho, Young Ae Lee, Cheng Qiling, Yulian Wu, Li Xing
  • Publication number: 20110028757
    Abstract: The present invention provides an efficient method for mass-producing 2-hydroxy-5-(substituted)phenylalkylaminobenzoic acid derivative represented by the specific Chemical formula or its salt, particularly 2-hydroxy-5-[2-(4-trifluoromethylphenyl)ethylamino] benzoic acid or its salt.
    Type: Application
    Filed: October 30, 2008
    Publication date: February 3, 2011
    Applicant: NEUROTECH PHARMACEUTICALS CO., LTD.
    Inventors: Byoung Joo Gwag, Jae Young Cho, Young Ae Lee, Cheng Qiling, Yulian Wu, Li Xing