Patents by Inventor Michael Stoffa, Sr.

Michael Stoffa, Sr. 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 attachment for a pipe
    Patent number: D872843
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: January 14, 2020
    Inventor: Michael Stoffa, Sr.