Patents by Inventor James D. Warkentin

James D. Warkentin 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).

  • Biocidally-active 1,3-benzodithiole-2-thione compounds
    Patent number: 4240821
    Abstract: 1,3-Benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: December 23, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Khalid Rasheed, James D. Warkentin
  • Biocidally-active 1,3-benzodithiole-2-thione compounds
    Patent number: 4187096
    Abstract: 1,3-Benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: February 5, 1980
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin
  • Soil fungicidal (nitrogen heterocyclic)-substituted-1,3-benzodithiole-2-ones
    Patent number: 4177270
    Abstract: 1,3-Benzodithiole-2-one and 1,3-benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: December 4, 1979
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin
  • Biocidally-active, 1,3-benzodithiole-2-one and 1,3-benzodithiole-2-thione compounds
    Patent number: 4175186
    Abstract: 1,3-Benzodithiole-2-one and 1,3-benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: November 4, 1977
    Date of Patent: November 20, 1979
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin
  • Biocidally-active 1,2,3-benzotrisulfides
    Patent number: 4139362
    Abstract: 1,2,3-Benzotrisulfide compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: February 13, 1979
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin
  • Biocidally-active 1,3-benzodithiole-2-one compounds
    Patent number: 4084954
    Abstract: 1,3-Benzodithiole-2-one and 1,3-benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: September 30, 1975
    Date of Patent: April 18, 1978
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin