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BARRETT, HAENTJENS & CO.

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  • HAZLETON, PA, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Slurry pump shaft seal flushing
    • Patent number 5,195,867
    • Issue date Mar 23, 1993
    • Barrett, Haentjens & Co.
    • Thomas E. Stirling
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Biodesulphurization process utilizing bacteria
    • Patent number 5,092,909
    • Issue date Mar 3, 1992
    • Barrett Haentjens & Co.
    • Roy H. Werner
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Apparatus for gas absorption in a liquid
    • Patent number 5,085,809
    • Issue date Feb 4, 1992
    • Barrett, Haentjens & Co.
    • Thomas E. Stirling
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Apparatus for gas absorption in a liquid
    • Patent number 5,043,104
    • Issue date Aug 27, 1991
    • Barrett Haentjens & Co.
    • Thomas E. Stirling
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Air stripping of liquids using high intensity turbulent mixer
    • Patent number 5,004,484
    • Issue date Apr 2, 1991
    • Barrett, Haentjens & Co.
    • Thomas E. Stirling
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    High speed centrifugal oxygenator
    • Patent number 4,917,577
    • Issue date Apr 17, 1990
    • Barrett, Haentjens & Co.
    • Thomas E. Stirling
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Centrifugal pump having resistant components
    • Patent number 4,913,619
    • Issue date Apr 3, 1990
    • Barrett Haentjens & Co.
    • Walter D. Haentjens
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mixing apparatus
    • Patent number 4,761,077
    • Issue date Aug 2, 1988
    • Barrett, Haentjens & Co.
    • Roy H. Werner
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Submersible sludge removing apparatus
    • Patent number 4,642,919
    • Issue date Feb 17, 1987
    • Barrett, Haentjens & Co.
    • Roy H. Werner
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Mixing apparatus
    • Patent number 4,474,477
    • Issue date Oct 2, 1984
    • Barrett, Haentjens & Co.
    • William H. Smith
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

  • Information Trademark

    73692243 - H
    • Serial number 73692243
    • Registration number 1552477
    • Filing date Oct 28, 1987
    • BARRETT, HAENTJENS & CO.
    • 6 - Common metals and their alloys
  • Information Trademark

    71631531 - KLEERSEAL
    • Serial number 71631531
    • Registration number 583529
    • Filing date Jun 21, 1952
    • BARRETT, HAENTJENS & CO.
    • 7 - Machines and machine tools
  • Information Trademark

    71573863 - TWIN VOLUTE
    • Serial number 71573863
    • Registration number 530045
    • Filing date Feb 15, 1949
    • BARRETT, HAENTJENS & CO.
    • 7 - Machines and machine tools