Patents by Inventor Ray S. Dewey

Ray S. Dewey 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).

  • Isoefrotomycin, process of preparation, pharmaceutical composition and method of using same
    Patent number: 4482545
    Abstract: There is disclosed the novel compound isoefrotomycin which is synthesized from efrotomycin as a Michael adduct by treatment with a mixture of polar and nonpolar solvents. Isoefrotomycin is an effective antimicrobial agent and growth promotant in animals.
    Type: Grant
    Filed: October 13, 1983
    Date of Patent: November 13, 1984
    Assignee: Merck & Co., Inc.
    Inventors: Richard J. Bochis, Ray S. Dewey
  • Discovery of MSD A63A, a new efrotomycin-line antibiotic fermentation broth
    Patent number: 4311693
    Abstract: The antibiotic MSD A63A, having antibacterial and growth-permittant activity, is produced by fermentation of Streptoverticillum hiroshimense MA4845 (ATCC 31586), in a suitable nutrient media.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: January 19, 1982
    Assignee: Merck & Co., Inc.
    Inventors: Sebastian Hernandez, Sheldon B. Zimmerman, Vincent P. Gullo, Ray S. Dewey
  • Process for producing A73A, a new Efrotomycin-like antibiotic in fermentation broth
    Patent number: 4304859
    Abstract: There is disclosed a new antibiotic agent, A73A, produced by Streptomyces viridifaciens MA-4864 (ATCC 31495) under suitable conditions. Said antibiotic shows antibacterial and growth-permittant activity.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: December 8, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Ray S. Dewey, James E. Flor, Sheldon B. Zimmerman, Patrick J. Cassidy, Satoshi Omura, Ruiko Oiwa
  • A40A Efrotomycin-like antibiotic in fermentation broth
    Patent number: 4264607
    Abstract: There is disclosed a new antibiotic agent, A40A, produced by Streptomyces lavedulae MA-4758 (ATCC 31312) under suitable conditions. Said antibiotic shows antibacterial and growth-permittant activity.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: April 28, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Ray S. Dewey, Vincent P. Gulla, Sheldon B. Zimmerman, Satoshi Omura, Ruiko Oiwa
  • Discovery of A73A, a new efrotomycin-like antibiotic in fermentation broth
    Patent number: 4262002
    Abstract: There is disclosed a new antibiotic agent, A73A, produced by Streptomyces viridifaciens MA-4864 (ATCC 31495) under suitable conditions. Said antibiotic shows antibacterial and growth-permittant activity.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: April 14, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Ray S. Dewey, James E. Flor, Sheldon B. Zimmerman, Patrick J. Cassidy, Satoshi Omura, Ruiko Oiwa