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Trademarks = 1

Forward Citations = 141

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8 inventors (with patents filed for the assignee):

David C Hitchcock (4 out of 6 patents)

Bohdan Lisowyj (4 out of 6 patents)

Henry Epstein (4 out of 4 patents)

4. Ronald D Grose (2 out of 9 patents)

5. Paul F Semien (1 out of 1 patent)

6. Merlin H Moseman (1 out of 5 patents)

7. Richard D Cunningham (1 out of 2 patents)

8. Leo F Nichols (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 5934138 - Tool and method for bending angle stock (1999-08-10),

2. 4769897 - Method for forming a press-fitted pipe joint (1988-09-13),

3. 4757772 - Sand collection system (1988-07-19),

4. 4757770 - Condensate sand collection system (1988-07-19),

5. 4678647 - Process for the recovery of gallium and germanium from coal fly ash (1987-07-07),

6. 4653321 - Method of automatically measuring fluid flow rates (1987-03-31),

7. 4643110 - Direct fuel-fired furnace arrangement for the recovery of gallium and (1987-02-17),

8. 4638286 - Reactive gas sensor (1987-01-20),

9. 4637219 - Peak shaving system for air conditioning (1987-01-20),

Enron Corp. was an American energy, commodities, and services company based in Houston, Texas. It was founded in 1985 and grew to be one of the largest natural gas and electricity marketers in the United States. However, the company famously collapsed in 2001 due to accounting fraud and corruption, resulting in one of the biggest corporate scandals in history.

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USPTO Data Jan 1 1976 - Dec 16 2025

9 Patents

#502 in Houston, TX

#2,006 in Texas

#31,616 in US

Houston, TX, United States of America

Enron Corp.