Patents by Inventor Shanzong Fang

Shanzong Fang 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).

  • ?-lactamase-resistant cephalosporin ester compounds and salts of thereof
    Patent number: 8168622
    Abstract: ?-lactamase resistant cephalosporin ester compound chosen from those represented by formula (I): wherein, and pharmaceutical salts thereof, composition thereof, and use thereof are disclosed.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: May 1, 2012
    Assignee: Zhejiang Yongning Pharmaceutical Co., Ltd.
    Inventors: Fengqi Ye, Shanzong Fang, Xiuwei Lu
  • BETA-LACTAMASE-RESISTANT CEPHALOSPORIN ESTER COMPOUNDS AND SALTS OF THEREOF
    Publication number: 20100227843
    Abstract: ?-lactamase resistant cephalosporin ester compound chosen from those represented by formula (I): wherein, and pharmaceutical salts thereof, composition thereof, and use thereof are disclosed.
    Type: Application
    Filed: May 21, 2010
    Publication date: September 9, 2010
    Applicant: ZHEJIANG YONGNING PHARMACEUTICAL FACTORY
    Inventors: Fengqi YE, Shanzong FANG, Xiuwel LU
  • Intermediate compound for the production of ?-lactamase-resistant cephalosporin ester compounds and salts thereof
    Patent number: 7750148
    Abstract: An intermediate compound represented by formula (IV) as follows:
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: July 6, 2010
    Assignee: Zhejiang Yongning Pharmaceutical Factory
    Inventors: Fengqi Ye, Shanzong Fang, Xiuwei Lu
  • Beta-lactamase resistant cephalosporin ester compounds and salts of thereof
    Publication number: 20070093464
    Abstract: The present invention discloses the ?-lactamase resistant cephalosporin ester compounds represented by the following formula (I), characterized in that the structures of the compounds are composed by connecting methyl ester residue of sulbactam halomethyl ester with carboxyl residue of semi-synthetic cephalosporins or salts of thereof. The present invention also provides the pharmaceutical salts of thereof, and the use of thereof in preparation of oral antibiotics.
    Type: Application
    Filed: November 19, 2004
    Publication date: April 26, 2007
    Inventors: Fengqi Ye, Shanzong Fang, Xiuwel Lu