Southern Gas Association

Calculating rank

USPTO Granted Patents = 9

Trademarks = 1

Forward Citations = 70

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4 inventors (with patents filed for the assignee):

Carl E Edlund (4 out of 7 patents)

Morton E Brown (4 out of 5 patents)

Cecil R Sparks (3 out of 5 patents)

4. Glenn Damewood (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 4654813 - Electronic square root error indicator (1987-03-31),

2. 4570745 - Method and apparatus for minimizing pulsations in fluid transmission (1986-02-18),

3. 4475168 - Performance indicator for compressor analogs (1984-10-02),

4. 4429371 - Relative horsepower indicator (1984-01-31),

5. 4424571 - Reciprocating compressor analog (1984-01-03),

6. 4419735 - Signal source for compressor analog (1983-12-06),

7. 4419624 - Apparatus for phase measurement (1983-12-06),

8. 4417164 - Mechanical valve analog (1983-11-22),

9. 4404646 - Piping network analog apparatus (1983-09-13),

Company Overview

The Southern Gas Association (SGA) is a community of natural gas professionals dedicated to advancing the industry through education and collaboration. With a focus on safety, innovation, and sustainability, SGA provides resources, training, and networking opportunities for its members to drive the future of natural gas.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

9 Patents

#230 in Dallas, TX

#2,060 in Texas

#32,627 in US

Dallas, TX, United States of America