Patents by Inventor Siegfried Holterscheidt

Siegfried Holterscheidt 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).

  • Clock
    Patent number: D291539
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: August 25, 1987
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt
  • Letter-opener
    Patent number: D292867
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: November 24, 1987
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt
  • Combined holder for a writing instrument and note paper
    Patent number: D298762
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: November 29, 1988
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt
  • Manicure kit
    Patent number: D300268
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: March 14, 1989
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt
  • Combination coaster set, corkscrew and bottle opener
    Patent number: D301532
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: June 13, 1989
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt
  • Combined desk stand
    Patent number: D304460
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: November 7, 1989
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt
  • Three-piece desk set
    Patent number: D305976
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: February 13, 1990
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt
  • Pocket torch
    Patent number: D306212
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: February 20, 1990
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt
  • Separable key chain
    Patent number: D310600
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: September 18, 1990
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt
  • Tape measure
    Patent number: D312976
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: December 18, 1990
    Assignee: Walter Henkels, GmbH
    Inventor: Siegfried Holterscheidt
  • Clock
    Patent number: D316522
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: April 30, 1991
    Assignee: Walter Henkels GmbH
    Inventor: Siegfried Holterscheidt