Forward Citations = 36

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5 inventors (with patents filed for the assignee):

James W Patterson (2 out of 3 patents)

Walter C Mills (2 out of 3 patents)

Ralph H Cushing (1 out of 1 patent)

4. Richard D Cunningham (1 out of 1 patent)

5. Ronald D Grose (1 out of 9 patents)

5 patents: Sort by Forward Citations

1. 4304104 - Pitot heat pump (1981-12-08),

2. 4282894 - Pressure-operated portable siphon apparatus for removing concentrations (1981-08-11),

3. 4155372 - Portable siphon apparatus for removing concentrations of liquid from a (1979-05-22),

4. 4065964 - Portable machine for testing protective coatings (1978-01-03),

5. 3948744 - Flush mounted corrosion electrode (1976-04-06),

Northern Natural Gas Company is a leading natural gas transmission and storage company in the United States. With over 14,000 miles of pipeline and 1.7 trillion cubic feet of storage capacity, we deliver reliable and affordable energy solutions to customers across the Midwest and Great Plains regions.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

5 Patents

#1 in Omaha, NB

#135 in NB

#50,174 in US

Omaha, NB, United States of America

Northern Natural Gas Company