Patents by Inventor George Greenspan

George Greenspan 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).

  • Stimulation of antigen production by Bordetella pertussis
    Patent number: 4551429
    Abstract: A method for the elaboration of large quantities of Bordetella pertussis protective antigens useful in the production of acellular vaccines for prevention of whooping cough.
    Type: Grant
    Filed: September 15, 1983
    Date of Patent: November 5, 1985
    Assignee: American Home Products Corporation
    Inventor: George Greenspan
  • Synthesis of 2,6-diaminopyrimidines
    Patent number: 3940393
    Abstract: New, substituted, 2,6-diaminopyrimidines are disclosed. These compounds are useful as anti-malarial agents. The oxygenation of pyrimethamine by fungi is also disclosed.
    Type: Grant
    Filed: June 21, 1974
    Date of Patent: February 24, 1976
    Assignee: American Home Products Corporation
    Inventors: George Greenspan, Richard W. Rees, Peter B. Russell
  • Microbiological reduction of PGA.sub.2 and 15-epi PGA.sub.2
    Patent number: 3930952
    Abstract: Reduction of 7(2-[(3R and 3S)-3-hydroxy-1-octenyl]-5-oxo-3-cyclopenten-1-yl)-5-heptenoic acid by microorganisms of the genera Streptomyces, Pseudomonas and Corynebacterium is disclosed. The products 7-(2-[(3R)-3-hydroxy-1-octenyl]-5-oxo-cyclopentyl)-5-heptenoic acid(11-deoxy-15-epi-PGE.sub.2), which is novel, and 7-(2-[(3S)-3-hydroxy-1-octenyl]-5-oxo-3-cyclopentyl)-5-heptenoic acid(11-deoxy-PGE.sub.2), respectively, are useful as intermediates for the synthesis of other physiologically active ingredients.
    Type: Grant
    Filed: April 4, 1975
    Date of Patent: January 6, 1976
    Assignee: American Home Products Corporation
    Inventors: George Greenspan, Michael R. G. Leeming