Patents by Inventor Jon V. Marschke

Jon V. Marschke 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).

  • Rotary tool for driving English and metric threaded members
    Patent number: 4100824
    Abstract: A rotary tool having an opening with a first set of peripheral notches providing bearing surfaces for engaging English size driving portions of threaded members and a second set of peripheral notches providing bearing surfaces for engaging metric size driving portions of threaded members.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: July 18, 1978
    Assignee: SURELAB Superior Research Laboratories, Inc.
    Inventor: Jon V. Marschke