Patents by Inventor Gisela Friesenhahn

Gisela Friesenhahn 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).

  • Detergent tablet
    Patent number: D442332
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: May 15, 2001
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D442333
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: May 15, 2001
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D442334
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: May 15, 2001
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D442738
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: May 22, 2001
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D442739
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: May 22, 2001
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D443105
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: May 29, 2001
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D443106
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: May 29, 2001
    Assignee: Benckiser, N.V.
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D443107
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: May 29, 2001
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D443108
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: May 29, 2001
    Assignee: Benckiser, N.V.
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D443389
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: June 5, 2001
    Assignee: Benckiser, N.V.
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D443721
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: June 12, 2001
    Assignee: Benckiser, N.V.
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D444914
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: July 10, 2001
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D452933
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: January 8, 2002
    Inventor: Gisela Friesenhahn
  • Detergent tablet
    Patent number: D465303
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: November 5, 2002
    Inventor: Gisela Friesenhahn