Patents by Inventor Karl-Erich Koch

Karl-Erich Koch 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).

  • Portable pneumatic sweeper
    Patent number: D276662
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: December 4, 1984
    Assignee: Andreas Stihl
    Inventors: Gerhard Zerrer, Hans Trumpf, Karl-Erich Koch
  • Handshower
    Patent number: D289545
    Type: Grant
    Filed: August 14, 1984
    Date of Patent: April 28, 1987
    Assignee: Knebel & Rottger GmbH & Co.
    Inventor: Karl-Erich Koch
  • Grill
    Patent number: D340164
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: October 12, 1993
    Assignee: AMC International Alfa Metalcraft Corporation AG
    Inventor: Karl-Erich Koch
  • Handle for kitchen utensils
    Patent number: D366184
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: January 16, 1996
    Assignee: AMC International Alfa Metalcraft Corporation AG
    Inventor: Karl-Erich Koch
  • Handle for a kitchen utensil
    Patent number: D367584
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: March 5, 1996
    Assignee: AMC International ALFA Metalcraft Corporation AG
    Inventor: Karl-Erich Koch
  • Serving plate
    Patent number: D370598
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: June 11, 1996
    Assignee: AMC International ALFA Metalcraft Corporation AG
    Inventor: Karl-Erich Koch
  • Grill
    Patent number: D378179
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: February 25, 1997
    Assignee: AMC International ALFA Metalcraft Corporation AG
    Inventors: Lutz Gebhardt, Karl-Erich Koch