For the Inventor, By the Inventor

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Boulder, CO, United States of America

Thomas Engine Company, LLC

USPTO Granted Patents = 15

EPO Patents = 1

Forward Citations = 76

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8 inventors (with patents filed for the assignee):

Randall R Gaiser (5 out of 20 patents)

Charles Russell Thomas (4 out of 11 patents)

Bret R Hauser (4 out of 12 patents)

4. Anton Polt (3 out of 3 patents)

5. David Pratt Branyon (2 out of 18 patents)

6. Michael Hold (1 out of 1 patent)

7. Randall R Geiser (1 out of 1 patent)

8. Anton Plot (0 patent)

15 patents: Sort by Forward Citations

1. 8534241 - CAM plate bearings for barrel engine (2013-09-17),

2. 8522732 - Flywheel for barrel engine (2013-09-03),

3. 8079336 - Compact valve actuation mechanism for barrel internal combustion engines (2011-12-20),

4. 8056542 - Intake system for a barrel internal combustion engine (2011-11-15),

5. 8015956 - Piston assembly for barrel engine (2011-09-13),

6. 7673607 - Tappet carrier for barrel engine (2010-03-09),

7. 7654234 - Barrel engine block assembly (2010-02-02),

8. 7600493 - Spline drive and cam shafts for barrel engines (2009-10-13),

9. 7581518 - Coaxial oil pump for barrel engines (2009-09-01),

10. 7469662 - Homogeneous charge compression ignition engine with combustion phasing (2008-12-30),

11. 7464673 - Single-ended barrel engine with double-ended, double roller pistons (2008-12-16),

12. 6899065 - Radial-valve gear apparatus for barrel engine (2005-05-31),

13. 6834636 - Single-ended barrel engine with double-ended, double roller pistons (2004-12-28),

14. 6698394 - Homogenous charge compression ignition and barrel engines (2004-03-02),

15. 6662775 - Integral air compressor for boost air in barrel engine (2003-12-16),

Thomas Engine Company, LLC is a leading manufacturer of high-performance engines for various industries. With a history spanning over 50 years, we have established ourselves as a reliable provider of innovative engine solutions. Our engines are known for their superior performance, reliability, and fuel efficiency. We cater to a wide range of industries including automotive, aerospace, marine, and power generation. Our commitment to quality and customer satisfaction has helped us build long-lasting partnerships with renowned organizations around the world. Visit our website to learn more about our products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

15 Patents

#77 in Boulder, CO

#404 in Colorado

#20,400 in US

#38,669 in the World

Boulder, CO, United States of America

Thomas Engine Company, LLC

Forward Citations = 76

8 inventors:

Randall R Gaiser (5 out of 20 patents)

Charles Russell Thomas (4 out of 11 patents)

Bret R Hauser (4 out of 12 patents)

4. Anton Polt (3 out of 3 patents)

5. David Pratt Branyon (2 out of 18 patents)

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