Patents by Inventor Michael R. G. Leeming

Michael R. G. Leeming 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).

  • Tetrahydro-s-triazine thiones
    Patent number: 4193994
    Abstract: A series of tetrahydro-s-triazin-2-[1H]-thiones and their use as acaricidal agents.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: March 18, 1980
    Assignee: Pfizer Inc.
    Inventors: Michael R. G. Leeming, Subramaniyan Narayanaswami, Alexander B. Penrose
  • Triazapentadienes as acaricides
    Patent number: 4186264
    Abstract: Certain heteroaryl triazapentadienes with acaricidal properties and their preparation are described.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: January 29, 1980
    Assignee: Pfizer Inc.
    Inventors: Alexander B. Penrose, Michael R. G. Leeming
  • Isothiazole carboxamides of m-aminotetramisole as anthelmintics
    Patent number: 4143147
    Abstract: Novel isothiazole carboxamides of 6-(m-aminophenyl)-2,3,5,6-tetrahydroimidazo[2,1-b]thiazole(m-aminotetramis ole) having anthelmintic properties are disclosed.
    Type: Grant
    Filed: September 20, 1977
    Date of Patent: March 6, 1979
    Assignee: Pfizer Inc.
    Inventors: Michael R. G. Leeming, John K. Stubbs
  • Isoxazole carboxamides of m-aminotetramisole as anthelmintics
    Patent number: 4137321
    Abstract: Novel isoxazole carboxamides of 6-(m-aminophenyl)-2,3,5,6-tetrahydroimidazo[2,1-b,]thiazole(m-aminotetrami sole) having anthelmintic properties are disclosed.
    Type: Grant
    Filed: September 20, 1977
    Date of Patent: January 30, 1979
    Assignee: Pfizer Inc.
    Inventors: Michael R. G. Leeming, John K. Stubbs
  • Triazapentadienes as acaricides
    Patent number: 4128652
    Abstract: Certain heteroaryl triazapentadienes with acaricidal properties and their preparation are described.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: December 5, 1978
    Assignee: Pfizer Inc.
    Inventors: Alexander B. Penrose, Michael R. G. Leeming
  • 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