Patents by Inventor Roy C. A. Robertson

Roy C. A. Robertson 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).

  • Housing for fire and smoke detector
    Patent number: D248629
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: July 25, 1978
    Assignee: Pittway Corporation
    Inventors: Frederick J. Conforti, Roy C. A. Robertson, Harvey Hanig
  • Housing for fire and smoke detector
    Patent number: D249481
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: September 19, 1978
    Assignee: Pittway Corporation
    Inventors: Frederick J. Conforti, Roy C. A. Robertson, Harvey Hanig
  • Housing for fire and smoke detector
    Patent number: D249482
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: September 19, 1978
    Assignee: Pittway Corporation
    Inventors: Frederick J. Conforti, Roy C. A. Robertson, Harvey Hanig
  • Housing for fire and smoke detector
    Patent number: D249483
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: September 19, 1978
    Assignee: Pittway Corporation
    Inventors: Frederick J. Conforti, Roy C. A. Robertson, Harvey Hanig
  • Combined computer mouse pad and integral user input device
    Patent number: D405771
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: February 16, 1999
    Assignee: Imageworks Manufacturing, Inc.
    Inventors: Jon Nachinson, Roy C. Robertson, Thomas Becker, Jonathan Hanuka