Patents by Inventor Martin K. McDonald

Martin K. McDonald 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).

  • Dock locker
    Patent number: D556451
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: December 4, 2007
    Assignee: HydroHoist International, Inc.
    Inventor: Martin K. McDonald