Patents by Inventor Martha Kellett

Martha Kellett 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).

  • 2-(3-Alanyl)clavam antibiotic
    Patent number: 4202819
    Abstract: A novel bioactive substance of the formula ##STR1## is produced in the fermentation of Streptomyces clavuligerus. Also disclosed is a fermentation method of making the substance. The substance exhibits in vitro antimicrobial activity in defined minimal medium and antifungal activity in natural medium.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: May 13, 1980
    Assignee: Hoffman-La Roche Inc.
    Inventors: Martha Kellett, David Pruess, James P. Scannell