Patents by Inventor Charles W. Wainwright

Charles W. Wainwright 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).

  • Adjustable leg
    Patent number: D418699
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: January 11, 2000
    Inventors: Martin P. Burns, Charles W. Wainwright
  • Adjustable bullet foot insert
    Patent number: D427461
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: July 4, 2000
    Assignee: Standex International Corporation
    Inventors: Martin P. Burns, Charles W. Wainwright