having means for rendering sparks visible

Patents Grantslast 30 patents

  • Information Patent Grant

    Observation plug and spark observation system

    • Patent number 9,627,858
    • Issue date Apr 18, 2017
    • Imagineering, Inc.
    • Yuji Ikeda
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Spark plug with optical sensor

    • Patent number 7,696,679
    • Issue date Apr 13, 2010
    • Kistler Holding, AG
    • Dieter Karst
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Optical sensor that measures the light output by the combustion cha...

    • Patent number 7,022,968
    • Issue date Apr 4, 2006
    • National Semiconductor Corporation
    • Peter J. Hopper
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Ignition system monitoring assembly

    • Patent number 6,642,718
    • Issue date Nov 4, 2003
    • Siemens Westinghouse Power Corporation
    • John Samuel Brushwood
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Sparking voltage detecting device for internal combustion engines

    • Patent number 5,317,268
    • Issue date May 31, 1994
    • Honda Giken Kogyo Kabushiki Kaisha
    • Shigeru Maruyama
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Combustion condition sensor

    • Patent number 4,452,072
    • Issue date Jun 5, 1984
    • Robert Bosch GmbH
    • Eckart Damson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Optical combustion event sensor structure particularly knock sensor...

    • Patent number 4,446,723
    • Issue date May 8, 1984
    • Robert Bosch GmbH
    • Bernward Boning
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Combustion monitoring system for multi-cylinder internal combustion...

    • Patent number 4,425,788
    • Issue date Jan 17, 1984
    • Robert Bosch GmbH
    • Horst Franke
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Combustion process sensor construction

    • Patent number 4,422,321
    • Issue date Dec 27, 1983
    • Robert Bosch GmbH
    • Klaus Muller
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Combustion process observation element construction

    • Patent number 4,422,323
    • Issue date Dec 27, 1983
    • Robert Bosch GmbH
    • Ernst Linder
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Combination gas oxygen concentration and combustion light sensor

    • Patent number 4,419,212
    • Issue date Dec 6, 1983
    • Robert Bosch GmbH
    • Hermann Dietz
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Combustion process parameter sensor

    • Patent number 4,413,509
    • Issue date Nov 8, 1983
    • Robert Bosch GmbH
    • Winfried Moser
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Optical combustion sensor, particularly for use with internal combu...

    • Patent number 4,412,446
    • Issue date Nov 1, 1983
    • Robert Bosch GmbH
    • Ernst Linder
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Combustion process sensor arrangement

    • Patent number 4,409,815
    • Issue date Oct 18, 1983
    • Robert Bosch GmbH
    • Rainer Burkel
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Diagnostic ignition spark detector

    • Patent number 4,384,256
    • Issue date May 17, 1983
    • Ronald J. Di Monte
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3846655

    • Patent number 3,846,655
    • Issue date Nov 5, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3517247

    • Patent number 3,517,247
    • Issue date Jun 23, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3480853

    • Patent number 3,480,853
    • Issue date Nov 25, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3417276

    • Patent number 3,417,276
    • Issue date Dec 17, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3348087

    • Patent number 3,348,087
    • Issue date Oct 17, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2969500

    • Patent number 2,969,500
    • Issue date Jan 24, 1961
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2937296

    • Patent number 2,937,296
    • Issue date May 17, 1960
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2674237

    • Patent number 2,674,237
    • Issue date Apr 6, 1954
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2300730

    • Patent number 2,300,730
    • Issue date Nov 3, 1942
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2103759

    • Patent number 2,103,759
    • Issue date Dec 28, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1719389

    • Patent number 1,719,389
    • Issue date Jul 2, 1929
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1713843

    • Patent number 1,713,843
    • Issue date May 21, 1929
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1660591

    • Patent number 1,660,591
    • Issue date Feb 28, 1928
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1577900

    • Patent number 1,577,900
    • Issue date Mar 23, 1926
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1560510

    • Patent number 1,560,510
    • Issue date Nov 3, 1925
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    OBSERVATION PLUG AND SPARK OBSERVATION SYSTEM

    • Publication number 20120242982
    • Publication date Sep 27, 2012
    • IMAGINEERING, INC.
    • Yuji Ikeda
    • G01 - MEASURING TESTING
  • Information Patent Application

    Spark Plug With Optical Sensor

    • Publication number 20080211373
    • Publication date Sep 4, 2008
    • Dieter Karst
    • G01 - MEASURING TESTING
  • Information Patent Application

    Light transmitting sparkplug

    • Publication number 20070152557
    • Publication date Jul 5, 2007
    • Thomas G. Packard
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Ignition system monitoring assembly

    • Publication number 20030057951
    • Publication date Mar 27, 2003
    • Siemens Westinghouse Power Corporation
    • John Samuel Brushwood
    • H01 - BASIC ELECTRIC ELEMENTS