Patents by Inventor Richard M. Acheson

Richard M. Acheson 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).

  • Acaricidal agents
    Patent number: 4162253
    Abstract: Quaternary 5,6-dihydroimidazo[2,1-b]thiazolium salts and novel quaternary 6,7-dihydro-[5H]thiazolo[3,2-a]pyrimidinium and 5,6,7,8-tetrahydrothiazolo[3,2-a][1,3]diazepinium salts, their preparation and preferred use as acaricidal agents are disclosed.
    Type: Grant
    Filed: July 1, 1977
    Date of Patent: July 24, 1979
    Assignee: Pfizer Inc.
    Inventors: Richard M. Acheson, Ian R. Cox, John K. Stubbs, Alexander B. Penrose
  • Quaternary 6,7-dihydro-[5H]-thiazolo[3,2-a]pyrimidinium salts
    Patent number: 4122272
    Abstract: Quaternary 5,6-dihydroimidazo[2,1-b]thiazolium salts and novel quaternary 6,7-dihydro-[5H]thiazolo[3,2-a]pyrimidinium and 5,6,7,8-tetrahydrothiazolo[3,2-a][1,3]diazepinium salts, their preparation and preferred use as acaricidal agents are disclosed.
    Type: Grant
    Filed: July 1, 1977
    Date of Patent: October 24, 1978
    Assignee: Pfizer Inc.
    Inventors: Richard M. Acheson, Ian R. Cox, John K. Stubbs, Alexander B. Penrose
  • Imidazo[2,1-b]thiazole and thiazolo[3,2-a]benzimidazole quaternary salts as hypoglycemic agents and growth promotants
    Patent number: 4080339
    Abstract: 7-Substituted imidazo[2,1-b]thiazolium and 9-substitutedthiazolo[3,2-a]benzimidazolium salts as blood-sugar lowering agents and growth promotants.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: March 21, 1978
    Assignee: Pfizer Inc.
    Inventors: Richard M. Acheson, John K. Stubbs, Charles A. R. Baxter, Donald E. Kuhla
  • Certain thiazolo compounds as acaricidal agents
    Patent number: 4076817
    Abstract: Quaternary 5,6-dihydroimidazo[2,1-b]thiazolium salts and novel quaternary 6,7-dihydro-[5H]thiazolo[3,2-a]pyrimidinium and 5,6,7,8-tetrahydrothiazolo[3,2-a][1,3]diazepinium salts, their preparation and preferred use as acaricidal agents are disclosed.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: February 28, 1978
    Assignee: Pfizer Inc.
    Inventors: Richard M. Acheson, Ian R. Cox, John K. Stubbs, Alexander B. Penrose
  • Imidazo[2,1-b]thiazole and thiazolo[3,2-a]-benzimidazole quaternary salts as hypoglycemic agents and growth promotants
    Patent number: 4042583
    Abstract: 7-Substituted imidazo[2,1-b]thiazolium and 9-substitutedthiazolo[3,2-a]benzimidazolium salts as blood-sugar lowering agents and growth promotants.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: August 16, 1977
    Assignee: Pfizer Inc.
    Inventors: Richard M. Acheson, John K. Stubbs, Charles A. R. Baxter, Donald E. Kuhla
  • Imidazo[2,1-b]thiazole and thiazolo[3,2-a]-benzimidazole quaternary salts as hypoglycemic agents and growth promotants
    Patent number: 4008245
    Abstract: 7-Substituted imidazo[2,1-b]thiazolium and 9-substituted thiazolo-[3,2-a]benzimidazolium salts as blood-sugar lowering agents and growth promotants.
    Type: Grant
    Filed: July 8, 1975
    Date of Patent: February 15, 1977
    Assignee: Pfizer Inc.
    Inventors: Richard M. Acheson, John K. Stubbs, Charles A. R. Baxter, Donald E. Kuhla
  • Imidazo[2,1-b]thiazole and thiazolo[3,2-a]-benzimidazole quaternary salts as hypoglycemic agents and growth promotants
    Patent number: 3954784
    Abstract: 7-Substituted imidazo[2,1-b]thiazolium and 9-substitutedthiazolo-[3,2-a]benzimidazolium salts as blood-sugar lowering agents and growth promotants.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: May 4, 1976
    Assignee: Pfizer Inc.
    Inventors: Richard M. Acheson, John K. Stubbs, Charles A. R. Baxter, Donald E. Kuhla