Patents by Inventor Leon Cogswell

Leon Cogswell 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).

  • Manifold
    Patent number: D440166
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: April 10, 2001
    Assignee: SPX Corporation
    Inventors: Christopher D. Manz, Leon Cogswell, Howard S. Ryan