TREA

Hach Chemical Company

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Organization

  • Loveland, CO, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Colorimetric determination of iron
    • Patent number RE30983
    • Issue date Jun 29, 1982
    • Hach Chemical Company
    • Lawrence L. Stookey
    • 023 - Chemistry: physical processes
  • Information Patent Grant

    Method for spectrophotometric compensation for colorimetric reagent...
    • Patent number 4,329,149
    • Issue date May 11, 1982
    • Hach Chemical Company
    • David J. Schoonover
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Ferroin reagent
    • Patent number RE30888
    • Issue date Mar 23, 1982
    • Hach Chemical Company
    • Lawrence L. Stookey
    • 544 - Organic compounds
  • Information Patent Grant

    Continuous pH meter
    • Patent number 4,288,308
    • Issue date Sep 8, 1981
    • Hach Chemical Company
    • Clifford C. Hach
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Flask heater assembly
    • Patent number 4,249,069
    • Issue date Feb 3, 1981
    • Hach Chemical Company
    • M. Leland Andersen
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Conductivity probe for viscous liquids
    • Patent number 4,220,921
    • Issue date Sep 2, 1980
    • Hach Chemical Company
    • Clifford C. Hach
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Calcium and magnesium specific hardness method using aluminum chela...
    • Patent number 4,205,955
    • Issue date Jun 3, 1980
    • Hach Chemical Company
    • Sharon S. Sloat
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Low turbidity nephelometer
    • Patent number 4,198,161
    • Issue date Apr 15, 1980
    • Hach Chemical Company
    • Paul E. Larson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Slurry pipet
    • Patent number 4,197,746
    • Issue date Apr 15, 1980
    • Hach Chemical Company
    • Clifford C. Hach
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Mechanical strainer
    • Patent number 4,177,148
    • Issue date Dec 4, 1979
    • Hach Chemical Company
    • Clifford C. Hach
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Digital titration device
    • Patent number 4,086,062
    • Issue date Apr 25, 1978
    • Hach Chemical Company
    • Clifford C. Hach
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Method and apparatus for sampling impure water
    • Patent number 4,053,282
    • Issue date Oct 11, 1977
    • Hach Chemical Company
    • Clifford C. Hach
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Carbon nitrogen test system
    • Patent number 4,025,309
    • Issue date May 24, 1977
    • Hach Chemical Company
    • Clifford C. Hach
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method and apparatus for automatically analyzing fluids
    • Patent number 3,953,136
    • Issue date Apr 27, 1976
    • Hach Chemical Company
    • Clifford C. Hach
    • G01 - MEASURING TESTING

Trademarklast 30 trademarks

  • Information Trademark

    73081556 - VOLUETTE
    • Serial number 73081556
    • Registration number 1055846
    • Filing date Mar 26, 1976
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    73054943 - MOLYVER
    • Serial number 73054943
    • Registration number 1036010
    • Filing date Jun 12, 1975
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72384712 - FERROZINE
    • Serial number 72384712
    • Registration number 938401
    • Filing date Feb 24, 1971
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72333401 - INCUTROL
    • Serial number 72333401
    • Registration number 892882
    • Filing date Jul 24, 1969
    • Hach Chemical Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    72291740 - SURFACE SCATTER
    • Serial number 72291740
    • Registration number 911622
    • Filing date Feb 23, 1968
    • HACH CHEMICAL COMPANY
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    72291741 - FALLING STREAM
    • Serial number 72291741
    • Registration number 864233
    • Filing date Feb 23, 1968
    • Hach Chemical Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    72163728 - HACH
    • Serial number 72163728
    • Registration number 762700
    • Filing date Mar 1, 1963
    • Hach Chemical Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    72129607 - BARIVER
    • Serial number 72129607
    • Registration number 745034
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129606 - PHOSVER
    • Serial number 72129606
    • Registration number 745033
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129611 - SULFAVER
    • Serial number 72129611
    • Registration number 745038
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129600 - ROVER
    • Serial number 72129600
    • Registration number 745226
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 3 - Bleaching preparations and other substances for laundry use
  • Information Trademark

    72129594 - NITRIVER
    • Serial number 72129594
    • Registration number 743970
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129604 - MONOVER
    • Serial number 72129604
    • Registration number 744597
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129609 - BOROVER
    • Serial number 72129609
    • Registration number 745036
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129612 - FLUORIVER
    • Serial number 72129612
    • Registration number 745039
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129603 - FERROVER
    • Serial number 72129603
    • Registration number 744596
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129595 - HEXAVER
    • Serial number 72129595
    • Registration number 752324
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129598 - CHLORIVER
    • Serial number 72129598
    • Registration number 744595
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129602 - STANNAVER
    • Serial number 72129602
    • Registration number 745031
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129608 - ALUVER
    • Serial number 72129608
    • Registration number 745035
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129610 - BIVER
    • Serial number 72129610
    • Registration number 745037
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129597 - CHROMAVER
    • Serial number 72129597
    • Registration number 744594
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
  • Information Trademark

    72129596 - NITRAVER
    • Serial number 72129596
    • Registration number 752325
    • Filing date Oct 10, 1961
    • Hach Chemical Company
    • 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry