Daylight signals

Patents Grantslast 30 patents

  • Information Patent Grant

    Rail signal arrangement for a rail signaling system

    • Patent number 11,383,743
    • Issue date Jul 12, 2022
    • Unipart Rail Limited
    • Kurt Conyngham
    • B61 - RAILWAYS
  • Information Patent Grant

    Train derailer placement warning device

    • Patent number 10,427,698
    • Issue date Oct 1, 2019
    • Green Timber Energy
    • John McCarthy
    • B61 - RAILWAYS
  • Information Patent Grant

    LED signal with side emitting status indicators

    • Patent number 7,048,425
    • Issue date May 23, 2006
    • Dialight Corporation
    • Chenhua You
    • B61 - RAILWAYS
  • Information Patent Grant

    Railroad crossing signal lamp

    • Patent number 4,152,756
    • Issue date May 1, 1979
    • General Signal Corporation
    • Warren R. Wrege
    • F21 - LIGHTING
  • Information Patent Grant

    3295237

    • Patent number 3,295,237
    • Issue date Jan 3, 1967
    • B61 - RAILWAYS
  • Information Patent Grant

    2721930

    • Patent number 2,721,930
    • Issue date Oct 25, 1955
    • G08 - SIGNALLING
  • Information Patent Grant

    2456777

    • Patent number 2,456,777
    • Issue date Dec 21, 1948
    • B61 - RAILWAYS
  • Information Patent Grant

    2199264

    • Patent number 2,199,264
    • Issue date Apr 30, 1940
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    2141243

    • Patent number 2,141,243
    • Issue date Dec 27, 1938
    • B61 - RAILWAYS
  • Information Patent Grant

    2046906

    • Patent number 2,046,906
    • Issue date Jul 7, 1936
    • B61 - RAILWAYS
  • Information Patent Grant

    1981577

    • Patent number 1,981,577
    • Issue date Nov 20, 1934
    • F21 - LIGHTING
  • Information Patent Grant

    1978334

    • Patent number 1,978,334
    • Issue date Oct 23, 1934
    • B61 - RAILWAYS
  • Information Patent Grant

    1959671

    • Patent number 1,959,671
    • Issue date May 22, 1934
    • B61 - RAILWAYS
  • Information Patent Grant

    1928439

    • Patent number 1,928,439
    • Issue date Sep 26, 1933
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    1796917

    • Patent number 1,796,917
    • Issue date Mar 17, 1931
    • B61 - RAILWAYS
  • Information Patent Grant

    1793227

    • Patent number 1,793,227
    • Issue date Feb 17, 1931
    • B61 - RAILWAYS
  • Information Patent Grant

    1788723

    • Patent number 1,788,723
    • Issue date Jan 13, 1931
    • B61 - RAILWAYS
  • Information Patent Grant

    1780355

    • Patent number 1,780,355
    • Issue date Nov 4, 1930
    • B61 - RAILWAYS
  • Information Patent Grant

    1748913

    • Patent number 1,748,913
    • Issue date Feb 25, 1930
    • B61 - RAILWAYS
  • Information Patent Grant

    1741642

    • Patent number 1,741,642
    • Issue date Dec 31, 1929
    • B61 - RAILWAYS
  • Information Patent Grant

    1421249

    • Patent number 1,421,249
    • Issue date Jun 27, 1922
    • B61 - RAILWAYS

Patents Applicationslast 30 patents

  • Information Patent Application

    LIGHT SIGNAL

    • Publication number 20120162997
    • Publication date Jun 28, 2012
    • Siemens Aktiengesellschaft
    • Joerg Birkholz
    • B61 - RAILWAYS
  • Information Patent Application

    LED signal with side emitting status indicators

    • Publication number 20050068771
    • Publication date Mar 31, 2005
    • DIALIGHT CORPORATION
    • Chenhua You
    • B61 - RAILWAYS