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Green River, WY, United States of America

Intermountain Research and Development Corporation

USPTO Granted Patents = 17

Forward Citations = 263

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21 inventors (with patents filed for the assignee):

Henry A Pfeffer (4 out of 20 patents)

William C Copenhafer (4 out of 19 patents)

Eric Rau (2 out of 3 patents)

4. John Walden (2 out of 7 patents)

5. Joseph M Ilardi (2 out of 6 patents)

6. Francis Rauh (2 out of 3 patents)

7. Michael J Cyran (2 out of 2 patents)

8. William R Frint (1 out of 7 patents)

9. Morton Meadow (1 out of 6 patents)

10. Walter Lobunez (1 out of 4 patents)

11. Nam Kyun Kim (1 out of 1 patent)

12. David Goldstein (1 out of 6 patents)

13. Marinus J Baadsgaard (1 out of 1 patent)

14. Michael L Pinsky (1 out of 5 patents)

15. John J Sinsky (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 4781899 - Purification of crystallized solids made via continuous crystallization (1988-11-01),

2. 4654204 - Production of sodium bicarbonate by reversion of soda-type feed salt (1987-03-31),

3. 4652054 - Solution mining of trona or nahcolite ore with (1987-03-24),

4. 4588569 - Dry injection flue gas desulfurization process using absorptive soda ash (1986-05-13),

5. 4557910 - Production of soda ash from nahcolite (1985-12-10),

6. 4555391 - Dry injection flue gas desulfurization process (1985-11-26),

7. 4519806 - Enhanced recovery of soda ash from aqueous sodium carbonate solutions (1985-05-28),

8. 4498706 - Solution mining of trona or nahcolite ore with aqueous NaOH and HCl (1985-02-12),

9. 4462794 - Method of operating a rotary calciner retrofitted to coal-firing (1984-07-31),

10. 4401635 - Recovery of alkali values from salt-containing trona deposits (1983-08-30),

11. 4375454 - Electrostatic enrichment of trona and nahcolite ores (1983-03-01),

12. 4285915 - Recovery of alkali values from trona ore (1981-08-25),

13. 4219133 - Storage level monitor (1980-08-26),

14. 4021527 - Production of sodium carbonate (1977-05-03),

15. 4019872 - Producing sodium carbonate monohydrate from carbonate solution including (1977-04-26),

Intermountain Research and Development Corporation is a leading research and development company that specializes in innovation and technology solutions. With a focus on creating cutting-edge products and services, Intermountain RDC works with clients to bring their ideas to life. The company offers a wide range of research and development services, including product design, engineering, prototyping, and testing. Intermountain RDC is committed to providing top-quality solutions to help clients succeed in today's competitive market.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

17 Patents

#1 in Green River, WY

#15 in Wyoming

#18,300 in US

#34,819 in the World

Green River, WY, United States of America

Intermountain Research and Development Corporation

Forward Citations = 263

21 inventors:

Henry A Pfeffer (4 out of 20 patents)

William C Copenhafer (4 out of 19 patents)

Eric Rau (2 out of 3 patents)

4. John Walden (2 out of 7 patents)

5. Joseph M Ilardi (2 out of 6 patents)

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