Patents by Inventor George C. Denniston, Jr.

George C. Denniston, Jr. 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).

  • Reversible vasectomy device and method
    Patent number: 4200088
    Abstract: A reversible vasectomy device and method which may be used to block the vas without the need for severing the vas. The invention includes a plug portion which may be inserted into a small hole in the vas to block it and an outer cylindrical portion which will surround the vas once inserted. The outer portion prevents the vas from dilating which would otherwise negate the effectiveness of the blockage.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: April 29, 1980
    Assignee: Ketchum Laboratories Inc.
    Inventor: George C. Denniston, Jr.