TREA

David Douglas Hall

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  • Sammamish, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Printhead with recessed slot ends
    • Patent number 9,707,586
    • Issue date Jul 18, 2017
    • Hewlett-Packard Development Company, L.P.
    • Rio Rivas
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Determining a healthy fluid ejection nozzle
    • Patent number 8,336,981
    • Issue date Dec 25, 2012
    • Hewlett-Packard Development Company, L.P.
    • Chien-Hua Chen
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Data storage in circuit elements with changed resistance
    • Patent number 7,924,597
    • Issue date Apr 12, 2011
    • Hewlett-Packard Development Company, L.P.
    • Donald W. Schulte
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Transistor antifuse device
    • Patent number 7,679,426
    • Issue date Mar 16, 2010
    • Hewlett-Packard Development Company, L.P.
    • Donald W. Schulte
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    PRINTHEAD WITH RECESSED SLOT ENDS
    • Publication number 20170157925
    • Publication date Jun 8, 2017
    • Hewlett-Packard Development Company, L.P.
    • Rio Rivas
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    PRINTHEAD WITH RECESSED SLOT ENDS
    • Publication number 20150001316
    • Publication date Jan 1, 2015
    • Hewlett-Packard Development Company, L.P.
    • Rio Rivas
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    DETERMINING A HEALTHY FLUID EJECTION NOZZLE
    • Publication number 20110084997
    • Publication date Apr 14, 2011
    • Chien-Hua Chen
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Data storage in circuit elements with changed resistance
    • Publication number 20090109725
    • Publication date Apr 30, 2009
    • Donald W. Schulte
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Transistor antifuse device
    • Publication number 20060160318
    • Publication date Jul 20, 2006
    • Donald W. Schulte
    • G11 - INFORMATION STORAGE