using discharge tubes only

Patents Grantslast 30 patents

  • Information Patent Grant

    Dynamic IGBT gate drive to reduce switching loss

    • Patent number 10,071,634
    • Issue date Sep 11, 2018
    • Ford Global Technologies, LLC
    • Zhuxian Xu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Variable voltage convert system with reduced bypass diode conduction

    • Patent number 9,931,944
    • Issue date Apr 3, 2018
    • Ford Global Technologies, LLC
    • Mohammed Khorshed Alam
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Power converter using wide band-gap devices

    • Patent number 9,933,805
    • Issue date Apr 3, 2018
    • ABB Schweiz AG
    • Liming Liu
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Resonant type high frequency power supply device and switching circ...

    • Patent number 9,882,509
    • Issue date Jan 30, 2018
    • Mitsubishi Electric Engineering Company, Limited
    • Yoshiyuki Akuzawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    High voltage electron tube inverter with individual output phase cu...

    • Patent number 7,916,507
    • Issue date Mar 29, 2011
    • Advanced Fusion Systems, LLC
    • Curtis A. Birnbach
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Radio frequency power source for generating an inductively coupled...

    • Patent number 6,740,842
    • Issue date May 25, 2004
    • Tokyo Electron Limited
    • Wayne L. Johnson
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Generation of low frequency, high voltages

    • Patent number 4,124,886
    • Issue date Nov 7, 1978
    • Counting Instruments Limited
    • Ian A. Black
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3514393

    • Patent number 3,514,393
    • Issue date May 26, 1970
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3037145

    • Patent number 3,037,145
    • Issue date May 29, 1962
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2936420

    • Patent number 2,936,420
    • Issue date May 10, 1960
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2898412

    • Patent number 2,898,412
    • Issue date Aug 4, 1959
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2765437

    • Patent number 2,765,437
    • Issue date Oct 2, 1956
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2730652

    • Patent number 2,730,652
    • Issue date Jan 10, 1956
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2548955

    • Patent number 2,548,955
    • Issue date Apr 17, 1951
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2540213

    • Patent number 2,540,213
    • Issue date Feb 6, 1951
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2483766

    • Patent number 2,483,766
    • Issue date Oct 4, 1949
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2333502

    • Patent number 2,333,502
    • Issue date Nov 2, 1943
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2256859

    • Patent number 2,256,859
    • Issue date Sep 23, 1941
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2219292

    • Patent number 2,219,292
    • Issue date Oct 29, 1940
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2018483

    • Patent number 2,018,483
    • Issue date Oct 22, 1935
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1979422

    • Patent number 1,979,422
    • Issue date Nov 6, 1934
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1892543

    • Patent number 1,892,543
    • Issue date Dec 27, 1932
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1763309

    • Patent number 1,763,309
    • Issue date Jun 10, 1930
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1620506

    • Patent number 1,620,506
    • Issue date Mar 8, 1927
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1563084

    • Patent number 1,563,084
    • Issue date Nov 24, 1925
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1418477

    • Patent number 1,418,477
    • Issue date Jun 6, 1922
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1390727

    • Patent number 1,390,727
    • Issue date Sep 13, 1921
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents