Patents by Inventor Karl Stefan Weibezahn

Karl Stefan Weibezahn 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).

  • Filter for a print cartridge
    Patent number: 6986571
    Abstract: The present invention provides an ink filter for an inkjet print cartridge, the print cartridge having nozzles for dispensing ink from an ink supply. The filter is formed of a polymeric material and is configured to prevent particles in the ink supply from passing to the print nozzles. The polymeric filter material is overmolded in a carrier which is configured to be coupled between the ink supply and the print nozzles.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: January 17, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Christie Dudenhoefer, Karl Stefan Weibezahn, Gary J. Watts
  • Filter for a print cartridge
    Publication number: 20030197767
    Abstract: The present invention provides an ink filter for an inkjet print cartridge, the print cartridge having nozzles for dispensing ink from an ink supply. The filter is formed of a polymeric material and is configured to prevent particles in the ink supply from passing to the print nozzles. The polymeric filter material is overmolded in a carrier which is configured to be coupled between the ink supply and the print nozzles.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 23, 2003
    Inventors: Christie Dudenhoefer, Karl Stefan Weibezahn, Gary J. Watts