Patents by Inventor Daniel S. Fletcher

Daniel S. Fletcher 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).

  • Anti-inflammatory and antidegenrative compounds isolated from L-681,512
    Patent number: 4874755
    Abstract: There are disclosed anti-inflammatory and antidegenerative compounds which are natural products produced by cultivation of soil microorganism L-681,512 under controlled fermentation conditions.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: October 17, 1989
    Assignee: Merck & Co., Inc.
    Inventors: Bonnie M. Ashe, Daniel S. Fletcher