For the Inventor, By the Inventor

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Waltham, MA, United States of America

Tecogen, Inc.

USPTO Granted Patents = 25

CIPO Patents = 3

EPO Patents = 3

Trademarks = 14

Forward Citations = 372

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28 inventors (with patents filed for the assignee):

Joseph B Gehret (9 out of 9 patents)

Jean Roy (8 out of 8 patents)

Robert Panora (7 out of 7 patents)

4. James R Hurley (6 out of 16 patents)

5. Ranson Roser (4 out of 5 patents)

6. Paul J Childs (4 out of 5 patents)

7. Timothy J Norman (3 out of 3 patents)

8. Ahmed Fouad Ghoniem (2 out of 8 patents)

9. Christopher R McLarnon (2 out of 11 patents)

10. Jian Wen (2 out of 4 patents)

11. Kailash C Shukla (2 out of 10 patents)

12. Michael P Grimanis (2 out of 3 patents)

13. Conrad J Orcheski (2 out of 2 patents)

14. Frank G Medros (2 out of 2 patents)

15. Ronald W Breault (2 out of 7 patents)

25 patents: Sort by Forward Citations

1. 11936327 - Hybrid power system with electric generator and auxiliary power source (2024-03-19),

2. 10774724 - Dual stage internal combustion engine aftertreatment system using exhaust gas intercooling and charger driven air ejector (2020-09-15),

3. 10774720 - NOx reduction without urea using a dual stage catalyst system with intercooling in vehicle gasoline engines (2020-09-15),

4. 9995195 - Emissions control systems and methods for vehicles (2018-06-12),

5. 9956526 - Poison-resistant catalyst and systems containing same (2018-05-01),

6. 9856767 - Systems and methods for reducing emissions in exhaust of vehicles and producing electricity (2018-01-02),

7. 9702306 - Internal combustion engine controller (2017-07-11),

8. 9631534 - Assembly and method for reducing nitrogen oxides, carbon monoxide, hydrocarbons and hydrogen gas in exhausts of internal combustion engines and producing an electrical output (2017-04-25),

9. 9470126 - Assembly and method for reducing ammonia in exhaust of internal combustion engines (2016-10-18),

10. 9121326 - Assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines (2015-09-01),

11. 8578704 - Assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines (2013-11-12),

12. 7243017 - Method for controlling internal combustion engine emissions (2007-07-10),

13. 7239034 - Engine driven power inverter system with cogeneration (2007-07-03),

14. 5363749 - Microwave enhanced deep fat fryer (1994-11-15),

15. 5333539 - Microwave enhanced deep fat fryer (1994-08-02),

Tecogen, Inc. is a leading manufacturer of clean energy products, including combined heat and power systems, chillers, and cogeneration modules. They offer efficient and environmentally-friendly solutions that help customers reduce their energy costs, lower greenhouse gas emissions, and enhance energy security. With a focus on innovation and advanced engineering, Tecogen provides reliable, cost-effective, and sustainable energy solutions for a wide range of applications across various industries.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

25 Patents

#53 in Waltham, MA

#776 in Massachusetts

#12,896 in US

#24,897 in the World

Waltham, MA, United States of America

Tecogen, Inc.

Forward Citations = 372

28 inventors:

Joseph B Gehret (9 out of 9 patents)

Jean Roy (8 out of 8 patents)

Robert Panora (7 out of 7 patents)

4. James R Hurley (6 out of 16 patents)

5. Ranson Roser (4 out of 5 patents)

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