Patents by Inventor Robert D. Birkenmeyer

Robert D. Birkenmeyer 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).

  • Lincomycin compounds
    Patent number: 4310660
    Abstract: Novel useful analogs of the well known antibiotics lincomycin and clindamycin. These analogs are prepared by condensing a cyclic acid with a sugar amine.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: January 12, 1982
    Assignee: The Upjohn Company
    Inventor: Robert D. Birkenmeyer
  • Lincomycin compounds
    Patent number: 4309533
    Abstract: Novel useful analogs of the well known antibiotics lincomycin and clindamycin. These analogs are prepared by condensing a cyclic acid with a sugar amine.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: January 5, 1982
    Assignee: The Upjohn Company
    Inventor: Robert D. Birkenmeyer
  • Method of treating malaria
    Patent number: 4293547
    Abstract: A process for treating a protozoan disease, for example, malaria, by the systemic administration to a subject hosting a malarial parasite of a novel analog of the well-known antibiotics lincomycin and clindamycin. These analogs are prepared by condensing a cyclic acid with a sugar amine.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: October 6, 1981
    Assignee: The Upjohn Company
    Inventors: Charles Lewis, Robert D. Birkenmeyer
  • Lincomycin compounds
    Patent number: 4278789
    Abstract: Novel useful analogs of the well known antibiotics lincomycin and clindamycin. These analogs are prepared by condensing a cyclic acid with a sugar amine.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: July 14, 1981
    Assignee: The Upjohn Company
    Inventor: Robert D. Birkenmeyer