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Houston, TX, United States of America

Quantum Energy Technologies LLC

USPTO Granted Patents = 11

Forward Citations = 142

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16 inventors (with patents filed for the assignee):

David A Switzer (3 out of 82 patents)

Charles W Haldeman (3 out of 12 patents)

Brian S Ahern (3 out of 26 patents)

4. Keith H Johnson (3 out of 8 patents)

5. Danick R J Normandeau (2 out of 4 patents)

6. Jawad A Alsadah (2 out of 4 patents)

7. Rodney M Wingerter (2 out of 4 patents)

8. Bin Zhang (2 out of 4 patents)

9. Kyle W Twynam (2 out of 2 patents)

10. Irina Alexina (1 out of 1 patent)

11. John T Preston (1 out of 5 patents)

12. Harry C Clark (1 out of 1 patent)

13. Per Onnerud (1 out of 1 patent)

14. Christina Lampe-Onnerud (1 out of 1 patent)

15. Mark Spitler (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 12692754 - External gap assembly (2026-07-28),

2. 11976758 - Electrically insulated threaded connection (2024-05-07),

3. 11668350 - Universal joint (2023-06-06),

4. 11608690 - Mud motor/BHA compression safety catch (2023-03-21),

5. 11391105 - Downhole pulse generation (2022-07-19),

6. 6240883 - Sub-critical water-fuel composition and combustion system (2001-06-05),

7. 6170441 - Engine system employing an unsymmetrical cycle (2001-01-09),

8. 6010544 - Supercritical water fuel composition and combustion system (2000-01-04),

9. 5997590 - Stabilized water nanocluster-fuel emulsions designed through quantum (1999-12-07),

10. 5958573 - Electroluminescent device having a structured particle electron conductor (1999-09-28),

11. 5800576 - Water clusters and uses therefor (1998-09-01),

Quantum Energy Technologies LLC, based in Houston, TX, specializes in the development and commercialization of advanced energy solutions. The company focuses on innovative technologies aimed at enhancing energy efficiency and sustainability across various sectors. With a commitment to research and development, Quantum Energy Technologies is dedicated to creating cutting-edge solutions that address the evolving needs of the energy landscape, contributing to a more sustainable future.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

11 Patents

#442 in Houston, TX

#1,720 in Texas

#27,470 in US

#51,671 in the World

Houston, TX, United States of America

Quantum Energy Technologies LLC

Forward Citations = 142

16 inventors:

David A Switzer (3 out of 82 patents)

Charles W Haldeman (3 out of 12 patents)

Brian S Ahern (3 out of 26 patents)

4. Keith H Johnson (3 out of 8 patents)

5. Danick R J Normandeau (2 out of 4 patents)

Please report any incorrect information to [email protected]

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