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Patents Grantslast 30 patents

  • Information Patent Grant

    Additive injection valve

    • Patent number 4,281,935
    • Issue date Aug 4, 1981
    • E. I. Du Pont de Nemours and Company
    • Gregory D. Cramer
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2026163

    • Patent number 2,026,163
    • Issue date Dec 31, 1935
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1817917

    • Patent number 1,817,917
    • Issue date Aug 11, 1931
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1758645

    • Patent number 1,758,645
    • Issue date May 13, 1930
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1713316

    • Patent number 1,713,316
    • Issue date May 14, 1929
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    1701217

    • Patent number 1,701,217
    • Issue date Feb 5, 1929
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1697972

    • Patent number 1,697,972
    • Issue date Jan 8, 1929
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    1694209

    • Patent number 1,694,209
    • Issue date Dec 4, 1928
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    1683902

    • Patent number 1,683,902
    • Issue date Sep 11, 1928
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    1555265

    • Patent number 1,555,265
    • Issue date Sep 29, 1925
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1489990

    • Patent number 1,489,990
    • Issue date Apr 8, 1924
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1480126

    • Patent number 1,480,126
    • Issue date Jan 8, 1924
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1427987

    • Patent number 1,427,987
    • Issue date Sep 5, 1922
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1361790

    • Patent number 1,361,790
    • Issue date Dec 7, 1920
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    1252501

    • Patent number 1,252,501
    • Issue date Jan 8, 1918
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    1169309

    • Patent number 1,169,309
    • Issue date Jan 25, 1916
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1027819

    • Patent number 1,027,819
    • Issue date May 28, 1912
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    994955

    • Patent number 994,955
    • Issue date Jun 13, 1911
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    983084

    • Patent number 983,084
    • Issue date Jan 31, 1911
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    884942

    • Patent number 884,942
    • Issue date Apr 14, 1908
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    862176

    • Patent number 862,176
    • Issue date Aug 6, 1907
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    748339

    • Patent number 748,339
    • Issue date Dec 29, 1903
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    644422

    • Patent number 644,422
    • Issue date Feb 27, 1900
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    613447

    • Patent number 613,447
    • Issue date Nov 1, 1898
    • F22 - STEAM GENERATION
  • Information Patent Grant

    483635

    • Patent number 483,635
    • Issue date Oct 4, 1892
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    469853

    • Patent number 469,853
    • Issue date Mar 1, 1892
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    423288

    • Patent number 423,288
    • Issue date Mar 11, 1890
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    417136

    • Patent number 417,136
    • Issue date Dec 10, 1889
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    320380

    • Patent number 320,380
    • Issue date Jun 16, 1885
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    292353

    • Patent number 292,353
    • Issue date Jan 22, 1884
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...