Patents by Inventor Robert E. Hillmer

Robert E. Hillmer 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).

  • Base for telephone set
    Patent number: D252876
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: September 11, 1979
    Assignee: Northern Telecom Limited
    Inventors: Clifford D. Read, Robert E. Hillmer, John F. Tyson
  • Base for telephone set
    Patent number: D253345
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: November 6, 1979
    Assignee: Northern Telecom Limited
    Inventors: Clifford D. Read, Robert E. Hillmer, John F. Tyson
  • Housing for telephone set
    Patent number: D253703
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: December 18, 1979
    Assignee: Northern Telecom Limited
    Inventors: Robert E. Hillmer, Donald T. Chadwick, John F. Tyson
  • Telephone base set
    Patent number: D263588
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: March 30, 1982
    Assignee: Northern Telecom Limited
    Inventor: Robert E. Hillmer
  • Telephone base set
    Patent number: D264211
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: May 4, 1982
    Assignee: Northern Telecom Limited
    Inventor: Robert E. Hillmer
  • Quantum user interface module
    Patent number: D394218
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: May 12, 1998
    Assignee: Johnson Service Company
    Inventors: Steven E. Keto, Herbert W. Mueller, Thomas J. Lechner, Jennifer J. Clark-Keller, George Rudich, Jr., Robert E. Hillmer