Lamp stems

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  • CPC
  • H01K1/22
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filament support and lamp

    • Patent number 11,735,410
    • Issue date Aug 22, 2023
    • Qingjun Xu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vibration resistant automotive front lighting lamp

    • Patent number 9,899,207
    • Issue date Feb 20, 2018
    • Koninklijke Philips N.V.
    • Markus Petter
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spacer bead geometry for controlled sealing stability

    • Patent number 7,317,284
    • Issue date Jan 8, 2008
    • James A. Carley
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electric incandescent lamp with sintered body glass plate

    • Patent number 6,140,769
    • Issue date Oct 31, 2000
    • U.S. Philips Corporation
    • Ursula Bruggemann
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Glass composition

    • Patent number 5,885,915
    • Issue date Mar 23, 1999
    • General Electric Company
    • Zoltan Laszlo Bako
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    3283197

    • Patent number 3,283,197
    • Issue date Nov 1, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3063130

    • Patent number 3,063,130
    • Issue date Nov 13, 1962
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2776852

    • Patent number 2,776,852
    • Issue date Jan 8, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2327031

    • Patent number 2,327,031
    • Issue date Aug 17, 1943
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2069079

    • Patent number 2,069,079
    • Issue date Jan 26, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2017862

    • Patent number 2,017,862
    • Issue date Oct 22, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1989791

    • Patent number 1,989,791
    • Issue date Feb 5, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1908736

    • Patent number 1,908,736
    • Issue date May 16, 1933
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1650602

    • Patent number 1,650,602
    • Issue date Nov 29, 1927
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1626677

    • Patent number 1,626,677
    • Issue date May 3, 1927
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1591708

    • Patent number 1,591,708
    • Issue date Jul 6, 1926
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1547393

    • Patent number 1,547,393
    • Issue date Jul 28, 1925
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1510540

    • Patent number 1,510,540
    • Issue date Oct 7, 1924
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1423956

    • Patent number 1,423,956
    • Issue date Jul 25, 1922
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1423957

    • Patent number 1,423,957
    • Issue date Jul 25, 1922
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1398032

    • Patent number 1,398,032
    • Issue date Nov 22, 1921
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents