Patents by Inventor Michael L. Putnam

Michael L. Putnam 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).

  • Controlled release of antibiotic salts from an implant
    Patent number: 5079007
    Abstract: An controlled release implant antibiotic formulation comprising (a) a crystalline salt of the antibiotic; (b) an amorphous salt of the antibiotic; and (c) excipients; whereas the excipients comprise from 0% to 10% of the tablet by weight.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: January 7, 1992
    Assignee: The Upjohn Company
    Inventor: Michael L. Putnam