Patents by Inventor Robert Thomas Perrault

Robert Thomas Perrault 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).

  • Flexible strap wrench
    Patent number: 4010662
    Abstract: A flexible strap wrench that is especially adapted to aid in the insertion of one length of pipe into another such as where a threaded fitting is joined.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: March 8, 1977
    Assignee: R. Thomas Perrault
    Inventor: Robert Thomas Perrault