Patents by Inventor Ronald W. Tholberg

Ronald W. Tholberg 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).

  • Holder for cellular telephone
    Patent number: D308205
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: May 29, 1990
    Assignee: Elizabeth H. Tholberg
    Inventor: Ronald W. Tholberg
  • Holder for cellular telephone
    Patent number: D310997
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: October 2, 1990
    Inventor: Ronald W. Tholberg