Patents by Inventor Duncan P. Copland

Duncan P. Copland 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).

  • Coffee maker
    Patent number: D524588
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: July 11, 2006
    Assignee: Conair Corporation
    Inventor: Duncan P. Copland
  • Combined word processor-printer and keyboard therefor
    Patent number: D294712
    Type: Grant
    Filed: July 17, 1985
    Date of Patent: March 15, 1988
    Assignee: Philips Home Interactive Systems Inc.
    Inventor: Duncan P. Copland
  • Food mixer
    Patent number: D315473
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: March 19, 1991
    Assignee: Sunbeam Corporation
    Inventor: Duncan P. Copland
  • Humidifier
    Patent number: D358461
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: May 16, 1995
    Inventors: Robert A. Barker, Duncan P. Copland
  • Toaster
    Patent number: D393773
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: April 28, 1998
    Assignee: Conair Corporation
    Inventor: Duncan P. Copland