Patents by Inventor Bruce Ivor Dittmar

Bruce Ivor Dittmar 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-Tertiary-alkyl-3-(substituted thienyl)ureas and 1-tertiary-alkyl-3-(substituted thietyl)ureas as antihypertensive agents
    Patent number: 4070479
    Abstract: This invention relates to a class of 1-tertiary-alkyl-3-(substituted thienyl)ureas and 1-tertiary-alkyl-3-(substituted thietyl)ureas that exhibit antihypertensive activity in warm-blooded animals. Representative compounds are 1-tert-butyl-3-(4,5-dihydro-3-thienyl)urea S,S-dioxide and 1-tert-butyl-3-(3-thietyl)urea S,S-dioxide.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: January 24, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul Edward Aldrich, Gilbert Harvey Berezin, Bruce Ivor Dittmar
  • Method for protecting loci against fungi and mites
    Patent number: 4066777
    Abstract: A method for protecting loci against fungi and mites comprising applying to the locus to be protected an effective amount of dialkyl 1,1'-(hydrocarbylenebiscarbamoyl)bis(2-benzimidazolecarbamate).
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: January 3, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Bruce Ivor Dittmar
  • 1-Tertiary-alkyl-3-(substituted thienyl)ureas and 1-tertiary-alkyl-3-(substituted thietyl)ureas as antihypertensive agents
    Patent number: 4009847
    Abstract: This invention relates to a class of 1-tertiary-alkyl-3-(substituted thienyl)ureas and 1-tertiary-alkyl-3-(substituted thietyl)ureas that exhibit antihypertensive activity in warm-blooded animals. Representative compounds are 1-tert-butyl-3-(4,5-dihydro-3-thienyl)urea S,S-dioxide and 1-tert-butyl-3-(3-thiethyl)urea S,S-dioxide.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: March 1, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul Edward Aldrich, Gilbert Harvey Berezin, Bruce Ivor Dittmar
  • Dialkyl 1,1'-(optionally substituted hydrocarbylenebiscarbamoyl)bis(2-benzimidazolecarbamates)
    Patent number: 3970668
    Abstract: Dialkyl 1,1'-(hydrocarbylenebiscarbamoyl)bis(2-benzimidazolecarbamate) as fungicides and mite ovicides.
    Type: Grant
    Filed: February 25, 1972
    Date of Patent: July 20, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Bruce Ivor Dittmar