Patents by Inventor Van D. Groenewold

Van D. Groenewold 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).

  • Packaging container
    Patent number: D264557
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: May 25, 1982
    Assignee: Dart Industries Inc.
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Embossed beverage or packaging cup
    Patent number: D265372
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: July 13, 1982
    Assignee: Dart Industries Inc.
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Packaging container
    Patent number: D267395
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: December 28, 1982
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Embossed beverage or packaging cup
    Patent number: D267849
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: February 8, 1983
    Assignee: Dart Industries Inc.
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Embossed beverage or packaging cup
    Patent number: D267850
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: February 8, 1983
    Assignee: Dart Industries Inc.
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Embossed beverage or packaging cup
    Patent number: D271650
    Type: Grant
    Filed: September 3, 1981
    Date of Patent: December 6, 1983
    Assignee: WMF Container Corporation
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz