Means for obtaining or maintaining the desired pressure within the tube

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  • H01J17/22
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum switching assembly

    • Patent number 9,570,263
    • Issue date Feb 14, 2017
    • Supergrid Institute SAS
    • Rama Shanker Parashar
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Embodiments of a field emission device

    • Patent number 8,928,228
    • Issue date Jan 6, 2015
    • Elwha LLC
    • Jesse R. Cheatham
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Plasma addressed display device with a function of controlling part...

    • Patent number 6,573,662
    • Issue date Jun 3, 2003
    • Koninklijke Philips Electronics N.V.
    • Pieter Van Der Wel
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Display panel

    • Patent number 6,400,078
    • Issue date Jun 4, 2002
    • Koninklijke Philips Electronics N.V.
    • Cornelus H. M. Van Bommel
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Display device with temperature stabilization

    • Patent number 6,320,318
    • Issue date Nov 20, 2001
    • U.S. Philips Corporation
    • Udo Van Slooten
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Plasma addressed liquid crystal display device with integrated sour...

    • Patent number 6,118,213
    • Issue date Sep 12, 2000
    • Tektronix, Inc.
    • Kevin J. Ilcisin
    • G02 - OPTICS
  • Information Patent Grant

    Thermo-quiescent reservoir system for a gaseous-discharge device

    • Patent number 5,994,661
    • Issue date Nov 30, 1999
    • Litton Systems, Inc.
    • Ralph Dean Schafer
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Plasma addressed liquid crystal display panel with integrated sourc...

    • Patent number 5,917,283
    • Issue date Jun 29, 1999
    • Tektronix, Inc.
    • Mark W. Roberson
    • G02 - OPTICS
  • Information Patent Grant

    Device for maintaining constant pressure in gas discharge vessels,...

    • Patent number 4,663,564
    • Issue date May 5, 1987
    • Siemens Aktiengesellschaft
    • Manfred Kobale
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electric device provided with a switch which is designed as a disch...

    • Patent number 4,260,934
    • Issue date Apr 7, 1981
    • U.S. Philips Corporation
    • Gijsbert Kuus
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Gas discharge display panel with mercury capsule disposed in channe...

    • Patent number 4,091,304
    • Issue date May 23, 1978
    • Burroughs Corporation
    • Bernard Caras
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Mercury capsule assembly for display panel

    • Patent number 3,947,713
    • Issue date Mar 30, 1976
    • Burroughs Corporation
    • George J. Przybylek
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Display panel with expansible, metallic capsule containing mercury...

    • Patent number 3,944,869
    • Issue date Mar 16, 1976
    • Burroughs Corporation
    • George J. Przybylek
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3895709

    • Patent number 3,895,709
    • Issue date Jul 22, 1975
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3872339

    • Patent number 3,872,339
    • Issue date Mar 18, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3862447

    • Patent number 3,862,447
    • Issue date Jan 21, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3828218

    • Patent number 3,828,218
    • Issue date Aug 6, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3821584

    • Patent number 3,821,584
    • Issue date Jun 28, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3720452

    • Patent number 3,720,452
    • Issue date Mar 13, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3611013

    • Patent number 3,611,013
    • Issue date Oct 5, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3366820

    • Patent number 3,366,820
    • Issue date Jan 30, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3331988

    • Patent number 3,331,988
    • Issue date Jul 18, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2925510

    • Patent number 2,925,510
    • Issue date Feb 16, 1960
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2899586

    • Patent number 2,899,586
    • Issue date Aug 11, 1959
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2864023

    • Patent number 2,864,023
    • Issue date Dec 9, 1958
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2419128

    • Patent number 2,419,128
    • Issue date Apr 15, 1947
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2363865

    • Patent number 2,363,865
    • Issue date Nov 28, 1944
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2091915

    • Patent number 2,091,915
    • Issue date Aug 31, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2067053

    • Patent number 2,067,053
    • Issue date Jan 5, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2046671

    • Patent number 2,046,671
    • Issue date Jul 7, 1936
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents