Patents by Inventor William Henry Gastrock

William Henry Gastrock 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).

  • 1,3-Dithiolane compounds and method of preparation thereof
    Patent number: 4096155
    Abstract: There are provided substituted 1,3-dithiolane compounds and a method for preparing the same. Said 1,3-dithiolane compounds are useful intermediates in the preparation of tetrahydro-7-oxobenzo[b]thien-4-ylureas and tetrahydro-4-oxo-1-naphthylureas which are known animal growth-promoting agents, which thiolanes are represented by the formula: ##STR1## wherein R.sub.1 is a member selected from the group consisting of 2-thienyl and phenyl; R.sub.2 is a member selected from the group consisting of ##STR2## wherein X is chlorine or bromine; R.sub.3 and R.sub.4 are each members selected from the group consisting of hydrogen and methyl; and when R.sub.1 and R.sub.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: June 20, 1978
    Assignee: American Cyanamid Company
    Inventors: William Henry Gastrock, Goro Asato
  • 1,3-Dithiolane compounds and method of preparation thereof
    Patent number: 4075228
    Abstract: There are provided substituted 1,3-dithiolane compounds and a method for preparing the same. Said 1,3-dithiolane compounds are useful intermediates in the preparation of tetrahydro-7-oxobenzo[b]thien-4-ylureas and tetrahydro-4-oxo-1-naphthylureas which are known animal growth-promoting agents, which thiolanes are represented by the formula: ##STR1## wherein R.sub.1 is a member selected from the group consisting of 2-thienyl and phenyl; R.sub.2 is a member selected from the group consisting of ##STR2## wherein X is chlorine or bromine; R.sub.3 and R.sub.4 are each members selected from the group consisting of hydrogen and methyl; and when R.sub.1 and R.sub.
    Type: Grant
    Filed: September 2, 1976
    Date of Patent: February 21, 1978
    Assignee: American Cyanamid Company
    Inventors: William Henry Gastrock, Goro Asato
  • Substituted 5-nitroimidazoles
    Patent number: 4026903
    Abstract: This invention relates to new chemical compounds of the class 1-substituted-5-nitro-2-substituted imidazoles and methods for the preparation thereof. These compounds are useful for their anti-microbial activity.
    Type: Grant
    Filed: November 18, 1975
    Date of Patent: May 31, 1977
    Assignee: American Cyanamid Company
    Inventors: Goro Asato, Gerald Berkelhammer, William Henry Gastrock
  • Phosphonium anti-parasitics
    Patent number: 3957978
    Abstract: A method for controlling helminths in domestic and farm animals by administering to said animals anthelmintically effective amounts of phosphonium compounds, is described.
    Type: Grant
    Filed: February 14, 1975
    Date of Patent: May 18, 1976
    Assignee: American Cyanamid Company
    Inventors: William Henry Gastrock, John Anthony Pankavich, Spencer Douglas Carter
  • 5-Amino-1-methyl-3-(1-methyl-5-nitro-2-imidazolyl)-1H-1,2,4-triazole
    Patent number: 3940411
    Abstract: This invention relates to new chemical compounds of the class 1-substituted-5-nitro-2-substituted imidazoles and methods for the preparation thereof. These compounds are useful for their anti-microbial activity.
    Type: Grant
    Filed: October 25, 1973
    Date of Patent: February 24, 1976
    Assignee: American Cyanamid Company
    Inventors: Goro Asato, Gerald Berkelhammer, William Henry Gastrock