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Patents Grantslast 30 patents

  • Information Patent Grant

    High pressure gas/liquid heat exchanger

    • Patent number 4,899,814
    • Issue date Feb 13, 1990
    • Richard C. Price
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Swirl flow heat exchanger with reverse spiral configuration

    • Patent number 4,883,117
    • Issue date Nov 28, 1989
    • Sundstrand Corporation
    • Bradley A. Dobbs
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Pipe spiral bundle for a heat exchanger

    • Patent number 4,306,618
    • Issue date Dec 22, 1981
    • Outokumpu Oy
    • Markku V. Honkajarvi
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    3863711

    • Patent number 3,863,711
    • Issue date Feb 4, 1975
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    3147800

    • Patent number 3,147,800
    • Issue date Sep 8, 1964
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3117623

    • Patent number 3,117,623
    • Issue date Jan 14, 1964
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    2715019

    • Patent number 2,715,019
    • Issue date Aug 9, 1955
    • F22 - STEAM GENERATION
  • Information Patent Grant

    1951752

    • Patent number 1,951,752
    • Issue date Mar 20, 1934
    • F22 - STEAM GENERATION
  • Information Patent Grant

    1942878

    • Patent number 1,942,878
    • Issue date Jan 9, 1934
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1809896

    • Patent number 1,809,896
    • Issue date Jun 16, 1931
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1804939

    • Patent number 1,804,939
    • Issue date May 12, 1931
    • F22 - STEAM GENERATION
  • Information Patent Grant

    1668965

    • Patent number 1,668,965
    • Issue date May 8, 1928
    • F22 - STEAM GENERATION
  • Information Patent Grant

    1652067

    • Patent number 1,652,067
    • Issue date Dec 6, 1927
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    964941

    • Patent number 964,941
    • Issue date Jul 19, 1910
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    955127

    • Patent number 955,127
    • Issue date Apr 19, 1910
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    782334

    • Patent number 782,334
    • Issue date Feb 14, 1905
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    398645

    • Patent number 398,645
    • Issue date Feb 26, 1889
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    389900

    • Patent number 389,900
    • Issue date Sep 25, 1888
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    347228

    • Patent number 347,228
    • Issue date Aug 10, 1886
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    175241

    • Patent number 175,241
    • Issue date Mar 28, 1876
    • F28 - HEAT EXCHANGE IN GENERAL