Patents by Inventor Feng Ling Qing

Feng Ling Qing 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).

  • Restricted 9-cis retinoids
    Patent number: 5968908
    Abstract: The invention is novel analogs of 9-cis-retinoic acid which are useful for the treatment and prevention of coronary artery disease and to protect against premature atherosclerosis by increasing HDL levels. The invention includes processes for preparing the novel 9-cis-retinoic acid analogs.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: October 19, 1999
    Assignee: American Cyanamid Company
    Inventors: Joseph William Epstein, Feng Ling Qing, Gary Harold Birnberg, Adam Matthew Gilbert