Patents by Inventor Darol Wintle, Jr.

Darol Wintle, 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).

  • Valve wrench
    Patent number: D338815
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: August 31, 1993
    Assignee: Megatrends Marketing, Inc.
    Inventor: Darol Wintle, Jr.