Patents by Inventor Karl Duerr

Karl Duerr 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).

  • Hanger with multiple means for supporting other hangers
    Patent number: 6308872
    Abstract: The disclosed hanger includes two means for supporting hangers. There is an opening in the top panel which permits entry of a hook from another hanger from front to back. A downwardly depending ganging member includes offset front and rear walls. The front and rear walls are spaced, so as to define a second passage to permit the entry of a hook from side to side. Inner edges of the front and rear walls are spaced sufficiently close, so as to prevent the passage of the hook of another hanger from front to back.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: October 30, 2001
    Assignee: Acotex-Duerr Inc
    Inventors: Oliver K. Duerr, Jens K. Duerr, Karl Duerr
  • Printer cassette
    Patent number: D453179
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: January 29, 2002
    Assignee: IIMAK
    Inventors: Joel Neri, Susan Hammill, Jennifer Johnson, Diane Kelly, John Krivda, Karl Duerr
  • Ink ribbon cartridge for printing device
    Patent number: D454151
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: March 5, 2002
    Assignee: International Imaging Materials, Inc.
    Inventors: Joel Neri, Susan Hammill, Jennifer Johnson, Diane Kelly, John Krivda, Karl Duerr
  • Printer cassette
    Patent number: D458295
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: June 4, 2002
    Assignee: IIMAK
    Inventors: Joel Neri, Susan Hammill, Jennifer Johnson, Diane Kelly, John Krivda, Karl Duerr
  • Ink ribbon cartridge for printing device
    Patent number: D458956
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: June 18, 2002
    Assignee: International Imaging Materials, Inc.
    Inventors: Joel Neri, Susan Hammill, Jennifer Johnson, Diane Kelly, John Krivda, Karl Duerr