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Volker Holzgrefe

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  • Ditzingen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fuel injection valve
    • Patent number 7,581,686
    • Issue date Sep 1, 2009
    • Robert Bosch GmbH
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Fuel injection valve
    • Patent number 7,481,201
    • Issue date Jan 27, 2009
    • Robert Bosch GmbH
    • Volker Holzgrefe
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Fuel injector
    • Patent number 7,234,654
    • Issue date Jun 26, 2007
    • Robert Bosch GmbH
    • Volker Holzgrefe
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Fuel injection valve
    • Patent number 7,140,562
    • Issue date Nov 28, 2006
    • Robert Bosch GmbH
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Perforated disc and valve comprising the same
    • Patent number 6,050,507
    • Issue date Apr 18, 2000
    • Robert Bosch GmbH
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Solenoid valve for slip-controlled hydraulic brake systems in motor...
    • Patent number 5,605,386
    • Issue date Feb 25, 1997
    • Robert Bosch GmbH
    • Ewald Ziegler
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Electromagnetically actuated injection valve
    • Patent number 5,383,607
    • Issue date Jan 24, 1995
    • Robert Bosch GmbH
    • Joerg Heyse
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Injection valve for fuel injection systems
    • Patent number 5,044,561
    • Issue date Sep 3, 1991
    • Robert Bosch GmbH
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Injection valve
    • Patent number 5,012,981
    • Issue date May 7, 1991
    • Robert Bosch GmbH
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Injection valve
    • Patent number 4,982,901
    • Issue date Jan 8, 1991
    • Robert Bosch GmbH
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Electrically controlled fuel injection pump for internal combustion...
    • Patent number 4,653,455
    • Issue date Mar 31, 1987
    • Robert Bosch GmbH
    • Ewald Eblen
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Multi-fan jet nozzle and fuel injector having a multi-fan jet nozzle
    • Publication number 20090321541
    • Publication date Dec 31, 2009
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Fuel injection valve
    • Publication number 20060226263
    • Publication date Oct 12, 2006
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Fuel injection valve
    • Publication number 20060043218
    • Publication date Mar 2, 2006
    • Volker Holzgrefe
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Fuel injection valve
    • Publication number 20040075002
    • Publication date Apr 22, 2004
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Fuel injection valve
    • Publication number 20040075001
    • Publication date Apr 22, 2004
    • Volker Holzgrefe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS