Patents by Inventor Frank W. Rohrbeck

Frank W. Rohrbeck 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).

  • Patent number: D334323
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: March 30, 1993
    Assignee: Reynolds Metals Company
    Inventor: Frank W. Rohrbeck
  • Patent number: D336216
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: June 8, 1993
    Assignee: Reynolds Metals Company
    Inventor: Frank W. Rohrbeck