Patents by Inventor Wilbur L. Bryan

Wilbur L. Bryan 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).

  • Process and composition for the purification of amphotericin B
    Patent number: 4902789
    Abstract: A unique four-solvent system comprising methanol, dimethylformamide, methylene chloride and water is employed to provide an improved process for the purification and crystallization of amphotericin B.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: February 20, 1990
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Gerd W. Michel, Wilbur L. Bryan, Elizabeth Bryan