Patents by Inventor Stanley Waterson

Stanley Waterson 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).

  • Formation and resolution of ibuprofen lysinate
    Patent number: 4994604
    Abstract: A process is disclosed for the formation and resolution of (S)-ibuprofen-(S)-lysine. The process employs preferential crystallization to separate a pair of diasteromeric salts, (S)-ibuprofen-(S)-lysine and (R)-ibuprofen-(S)-lysine.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: February 19, 1991
    Assignee: Merck & Co., Inc.
    Inventors: Hsien-Hsin Tung, Stanley Waterson, Scott D. Reynolds