Patents by Inventor John P. Wiebe

John P. Wiebe 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).

  • Biological contraceptive for males
    Patent number: 4760097
    Abstract: A male contraceptive preparation is disclosed. The contraceptive preparation consists essentially of 1,2,3-trihydroxypropane in solution in a suitable carrier such as distilled water or saline solution. The method of contraception comprises injecting the contraceptive preparation into the testes. The 1,2,3-trihydroxypropane has been found to act as a potent inhibitor of spermatogenesis, resulting in long term infertility, with no apparent effect on libido, secondary sex characters, mating behaviour and hormone levels. There are no observed side effects and no observed effects on other aspects of reproductive and hormonal biology.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: July 26, 1988
    Assignee: The University of Western Ontario
    Inventor: John P. Wiebe
  • Biological contraceptive and contraceptive technique for males
    Patent number: 4720507
    Abstract: A male contraceptive preparation and a contraceptive technique are disclosed. The contraceptive preparation consists essentially of 1,2,3-trihydroxypropane ("THP"; glycerol) in solution in a suitable carrier such as distilled water or saline solution. In accordance with the contraceptive technique, the contraceptive preparation is injected into the testes. The THP has been found to act as a potent inhibitor of spermatogenesis, resulting in long term infertility, with no apparent effect on libido, secondary sex characters, mating behavior and hormone levels. There are no observed side effects and no observed effects on other aspects of reproductive and hormonal biology.
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: January 19, 1988
    Assignee: University of Western Ontario
    Inventor: John P. Wiebe