Patents by Inventor David Houseman

David Houseman 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).

  • Sealing member
    Patent number: D436157
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: January 9, 2001
    Assignee: Chem Search Corp.
    Inventor: David Houseman
  • Pipe flashing
    Patent number: D423087
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: April 18, 2000
    Assignee: Deks Industries Pty Ltd.
    Inventor: David Houseman