Patents by Inventor Joan P. Wolff

Joan P. Wolff 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).

  • Cutter for pie top dough
    Patent number: D303474
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: September 19, 1989
    Assignee: Rowoco Inc.
    Inventor: Joan P. Wolff
  • Cutter for pie top dough
    Patent number: D303475
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: September 19, 1989
    Assignee: Rowoco Inc.
    Inventor: Joan P. Wolff
  • Cutter for pie top dough
    Patent number: D304403
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: November 7, 1989
    Assignee: Rowoco Inc.
    Inventor: Joan P. Wolff
  • Pie topper plate
    Patent number: D311117
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: October 9, 1990
    Assignee: Coats & Clark, Inc.
    Inventor: Joan P. Wolff
  • Pie topper plate
    Patent number: D311118
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: October 9, 1990
    Assignee: Coats & Clark, Inc.
    Inventor: Joan P. Wolff
  • Pie topper plate
    Patent number: D312758
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: December 11, 1990
    Assignee: Coats & Clark, Inc.
    Inventor: Joan P. Wolff
  • Pie topper plate
    Patent number: D312759
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: December 11, 1990
    Assignee: Coats & Clark, Inc.
    Inventor: Joan P. Wolff
  • Pie topper plate
    Patent number: D313730
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: January 15, 1991
    Assignee: Coats & Clark, Inc.
    Inventor: Joan P. Wolff