by application of heat

Patents Grantslast 30 patents

  • Information Patent Grant

    Third rail heater control system

    • Patent number 10,927,518
    • Issue date Feb 23, 2021
    • M.C. DEAN INC.
    • Walter Krohn
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad snow removal system

    • Patent number 7,979,170
    • Issue date Jul 12, 2011
    • Railway Equipment Company, Inc.
    • David K. Fox
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad snow removal system

    • Patent number 7,693,623
    • Issue date Apr 6, 2010
    • Railway Equipment Company, Inc.
    • David K. Fox
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Snow removal apparatus and method of using same

    • Patent number 6,553,693
    • Issue date Apr 29, 2003
    • 360fiber ltd.
    • Lionel Charles Desmarais
    • B61 - RAILWAYS
  • Information Patent Grant

    Snow and ice melting device

    • Patent number 5,642,673
    • Issue date Jul 1, 1997
    • Bobby D. Lucky
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    3858518

    • Patent number 3,858,518
    • Issue date Jan 7, 1975
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    3099097

    • Patent number 3,099,097
    • Issue date Jul 30, 1963
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    3099396

    • Patent number 3,099,396
    • Issue date Jul 30, 1963
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    2802286

    • Patent number 2,802,286
    • Issue date Aug 13, 1957
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    2729000

    • Patent number 2,729,000
    • Issue date Jan 3, 1956
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    2543166

    • Patent number 2,543,166
    • Issue date Feb 27, 1951
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    2093840

    • Patent number 2,093,840
    • Issue date Sep 21, 1937
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1729754

    • Patent number 1,729,754
    • Issue date Oct 1, 1929
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1570377

    • Patent number 1,570,377
    • Issue date Jan 19, 1926
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1449259

    • Patent number 1,449,259
    • Issue date Mar 20, 1923
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1422417

    • Patent number 1,422,417
    • Issue date Jul 11, 1922
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1402091

    • Patent number 1,402,091
    • Issue date Jan 3, 1922
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1392132

    • Patent number 1,392,132
    • Issue date Sep 27, 1921
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1376741

    • Patent number 1,376,741
    • Issue date May 3, 1921
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1340263

    • Patent number 1,340,263
    • Issue date May 18, 1920
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1333373

    • Patent number 1,333,373
    • Issue date Mar 9, 1920
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1284873

    • Patent number 1,284,873
    • Issue date Nov 12, 1918
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1244300

    • Patent number 1,244,300
    • Issue date Oct 23, 1917
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1155099

    • Patent number 1,155,099
    • Issue date Sep 28, 1915
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1127407

    • Patent number 1,127,407
    • Issue date Feb 9, 1915
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1016411

    • Patent number 1,016,411
    • Issue date Feb 6, 1912
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    980332

    • Patent number 980,332
    • Issue date Jan 3, 1911
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    801370

    • Patent number 801,370
    • Issue date Oct 10, 1905
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    785204

    • Patent number 785,204
    • Issue date Mar 21, 1905
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    678277

    • Patent number 678,277
    • Issue date Jul 9, 1901
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents