Patents by Inventor John P. Etcheverry

John P. Etcheverry 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).

  • Butterfly valve
    Patent number: 4290615
    Abstract: A butterfly valve having a split sealing ring in a groove in the interior of the passageway therethrough, the sealing ring having mating ends of a tongue and groove construction or the like.
    Type: Grant
    Filed: December 14, 1979
    Date of Patent: September 22, 1981
    Assignee: International Telephone and Telegraph Corporation
    Inventor: John P. Etcheverry