Patents by Inventor William V. Porter

William V. Porter 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).

  • Vent cover
    Patent number: D245255
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: August 2, 1977
    Inventor: William V. Porter
  • Pipe vent
    Patent number: D245333
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: August 9, 1977
    Inventors: William V. Porter, Maurice A. Riordan
  • Combined collapsible beach rest and carrying case
    Patent number: D260577
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: September 8, 1981
    Inventor: William V. Porter
  • Line marker overcover
    Patent number: D422235
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: April 4, 2000
    Inventor: William V. Porter