Patents by Inventor Jochen Fritzsche

Jochen Fritzsche 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).

  • Telephone set base
    Patent number: D291308
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: August 11, 1987
    Assignee: Siemens Corporate Research and Support, Inc.
    Inventors: Andreas Preussner, Jochen Fritzsche
  • Telephone station
    Patent number: D303966
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: October 10, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventor: Jochen Fritzsche
  • Telephone set
    Patent number: D306727
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: March 20, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventor: Jochen Fritzsche