NORTHERN NATURAL GAS COMPANY

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OMAHA, NE, US

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Patents Grantslast 30 patents

Information Patent Grant
Pitot heat pump
- Patent number 4,304,104
- Issue date Dec 8, 1981
- Northern Natural Gas Company
- Ronald D. Grose
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Pressure-operated portable siphon apparatus for removing concentrat...
- Patent number 4,282,894
- Issue date Aug 11, 1981
- Northern Natural Gas Company
- Walter C. Mills
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Grant
Portable siphon apparatus for removing concentrations of liquid fro...
- Patent number 4,155,372
- Issue date May 22, 1979
- Northern Natural Gas Company
- Walter C. Mills
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Portable machine for testing protective coatings
- Patent number 4,065,964
- Issue date Jan 3, 1978
- Northern Natural Gas Company
- Richard D. Cunningham
- G01 - MEASURING TESTING
Information Patent Grant
Flush mounted corrosion electrode
- Patent number 3,948,744
- Issue date Apr 6, 1976
- Northern Natural Gas Company
- Ralph H. Cushing
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
78704523 - NORTHERN LIGHTS
- Serial number 78704523
- Registration number 3437819
- Filing date Aug 31, 2005
- Northern Natural Gas Company
- 39 - Transport
Information Trademark
78704549 - NORTHERN LIGHTS
- Serial number 78704549
- Registration number 3442407
- Filing date Aug 31, 2005
- Northern Natural Gas Company
- 40 - Treatment of materials
Information Trademark
78704491 - NORTHERN LIGHTS
- Serial number 78704491
- Registration number 3548234
- Filing date Aug 31, 2005
- Northern Natural Gas Company
- 37 - Building construction
Information Trademark
76484219 - N-ERGY
- Serial number 76484219
- Registration number 2897835
- Filing date Jan 14, 2003
- Northern Natural Gas Company
- 35 - Advertising
Information Trademark
72152524 - NNG
- Serial number 72152524
- Registration number 768886
- Filing date Sep 5, 1962
- NORTHERN NATURAL GAS COMPANY
- 39 - Transport