Patents by Inventor Philip Calvert

Philip Calvert 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).

  • Evaporative cooling housing
    Patent number: D362904
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: October 3, 1995
    Assignee: General Shelters of Texas, S.B., Inc.
    Inventors: Fred Wulf, Philip Calvert
  • Evaporative cooler housing
    Patent number: D362905
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: October 3, 1995
    Assignee: General Shelters of Texas, S.B., Inc.
    Inventors: Fred Wulf, Philip Calvert