Patents by Inventor Donald L. Lewison

Donald L. Lewison 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).

  • Ski carrier attachment for a bike rack
    Patent number: D337081
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: July 6, 1993
    Assignee: BakRak, Inc.
    Inventors: Melvin G. Peterman, Bradley A. Stivers, Donald L. Lewison
  • Hitch-mounted bike rack
    Patent number: D337087
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: July 6, 1993
    Assignee: BakRak, Inc.
    Inventors: Melvin G. Peterman, Bradley A. Stivers, Donald L. Lewison