Patents by Inventor Lewis A. Wetherill

Lewis A. Wetherill 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).

  • Cephalosporin antibiotic
    Patent number: 4329453
    Abstract: (6R,7R)-7-[(Z)-2-(2-Aminothiazol-4-yl)-2-(2-carboxyprop-2-oxyimino)acetamid o]-3-(1-pyridiniummethyl)ceph-3-em-4-carboxylate in the form of its crystalline pentahydrate. This pentahydrate has a well defined crystalline structure and exhibits good stability on storage. The pentahydrate exhibits excellent antibiotic activity, particularly against organisms which are normally difficult to combat with .beta.-lactam antibiotics.
    Type: Grant
    Filed: September 9, 1980
    Date of Patent: May 11, 1982
    Assignee: Glaxo Group Limited
    Inventors: Alastair C. Brodie, Lewis A. Wetherill