Patents by Inventor Randolph L. Carlson

Randolph L. Carlson 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).

  • Data storage tape cartridge
    Patent number: D412326
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: July 27, 1999
    Assignee: Imation Corp.
    Inventors: John T. Gianfagna, Leslie M. Collins, Randolph L. Carlson, Gregory H. Johnson, Steven R. Seeman