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  • CPC
  • H01J2893/0021
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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J2893/00Discharge tubes and lamps

Current Industry

H01J2893/0021carbon
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    3591822
    • Patent number 3,591,822
    • Issue date Jul 6, 1971
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    3549930
    • Patent number 3,549,930
    • Issue date Dec 22, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3307063
    • Patent number 3,307,063
    • Issue date Feb 28, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2778786
    • Patent number 2,778,786
    • Issue date Jan 22, 1957
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    2761848
    • Patent number 2,761,848
    • Issue date Sep 4, 1956
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2683236
    • Patent number 2,683,236
    • Issue date Jul 6, 1954
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2544320
    • Patent number 2,544,320
    • Issue date Mar 6, 1951
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2527666
    • Patent number 2,527,666
    • Issue date Oct 31, 1950
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2513387
    • Patent number 2,513,387
    • Issue date Jul 4, 1950
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2456099
    • Patent number 2,456,099
    • Issue date Dec 14, 1948
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2424294
    • Patent number 2,424,294
    • Issue date Jul 22, 1947
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2385380
    • Patent number 2,385,380
    • Issue date Sep 25, 1945
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2364536
    • Patent number 2,364,536
    • Issue date Dec 5, 1944
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2333622
    • Patent number 2,333,622
    • Issue date Nov 2, 1943
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2317143
    • Patent number 2,317,143
    • Issue date Apr 20, 1943
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2282098
    • Patent number 2,282,098
    • Issue date May 5, 1942
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2193600
    • Patent number 2,193,600
    • Issue date Mar 12, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2158996
    • Patent number 2,158,996
    • Issue date May 23, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2158998
    • Patent number 2,158,998
    • Issue date May 23, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2158995
    • Patent number 2,158,995
    • Issue date May 23, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2159806
    • Patent number 2,159,806
    • Issue date May 23, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2158997
    • Patent number 2,158,997
    • Issue date May 23, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2154278
    • Patent number 2,154,278
    • Issue date Apr 11, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2093711
    • Patent number 2,093,711
    • Issue date Sep 21, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2062370
    • Patent number 2,062,370
    • Issue date Dec 1, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2060663
    • Patent number 2,060,663
    • Issue date Nov 10, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2013419
    • Patent number 2,013,419
    • Issue date Sep 3, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1982821
    • Patent number 1,982,821
    • Issue date Dec 4, 1934
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1869566
    • Patent number 1,869,566
    • Issue date Aug 2, 1932
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents