Patents by Inventor Willem G. C. Winters

Willem G. C. Winters 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).

  • Chair
    Patent number: D288994
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: March 31, 1987
    Inventor: Willem G. C. Winters
  • Foldable chair
    Patent number: D296274
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: June 21, 1988
    Assignee: Plastics Designers & Consultants GmbH
    Inventor: Willem G. C. Winters