For the Inventor, By the Inventor

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Akron, OH, United States of America

Echogen Power Systems, LLC

Calculating rank

USPTO Granted Patents = 41

% Expired Patents = 4.9

CIPO Patents = 2

EPO Patents = 14

Trademarks = 2

Forward Citations = 2,636

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17 inventors (with patents filed for the assignee):

Timothy James Held (26 out of 52 patents)

Michael Louis Vermeersch (11 out of 21 patents)

Jason D Miller (10 out of 32 patents)

4. Stephen R Hostler (8 out of 8 patents)

5. Tao Xie (7 out of 23 patents)

6. Brett Bowan (6 out of 6 patents)

7. Michael Gurin (4 out of 73 patents)

8. Brian F Hume (4 out of 4 patents)

9. Joshua Giegel (2 out of 22 patents)

10. Jason Lee Preuss (2 out of 2 patents)

11. Katherine L Hart (2 out of 3 patents)

12. Cameron Close (2 out of 2 patents)

13. Alexander Steven Kacludis (2 out of 2 patents)

14. Steve B Zakem (2 out of 2 patents)

15. Vamshi Krishna Avadhanula (1 out of 1 patent)

Core Competencies:

Turbopump

Supercritical Working Fluid

Thermal Energy Storage

Power Cycle

Mass Management

Heat to Electricity

Pressure Control

Thrust Management

Cooling Circuit

Carbon Dioxide

Hydrostatic Bearings

Thermodynamic Conversion

41 patents: Sort by Forward Citations

1. 11293309 - Active thrust management of a turbopump within a supercritical working fluid circuit in a heat engine system (2022-04-05),

2. 11187112 - Systems and methods for generating electricity via a pumped thermal energy storage system (2021-11-30),

3. 10934895 - Heat engine systems with high net power supercritical carbon dioxide circuits (2021-03-02),

4. 10883388 - Systems and methods for generating electricity via a pumped thermal energy storage system (2021-01-05),

5. 10570777 - Active thrust management of a turbopump within a supercritical working fluid circuit in a heat engine system (2020-02-25),

6. 10495098 - Systems and methods for balancing thrust loads in a heat engine system (2019-12-03),

7. 10472994 - Systems and methods for controlling the pressure of a working fluid at an inlet of a pressurization device of a heat engine system (2019-11-12),

8. 10267184 - Valve network and method for controlling pressure within a supercritical working fluid circuit in a heat engine system with a turbopump (2019-04-23),

9. 10077683 - Mass management system for a supercritical working fluid circuit (2018-09-18),

10. 10024198 - Heat engine system including an integrated cooling circuit (2018-07-17),

11. 9932861 - Systems and methods for controlling backpressure in a heat engine system having hydrostaic bearings (2018-04-03),

12. 9926811 - Control methods for heat engine systems having a selectively configurable working fluid circuit (2018-03-27),

13. 9874112 - Heat engine system having a selectively configurable working fluid circuit (2018-01-23),

14. 9863287 - Heat engine system with a supercritical working fluid and processes thereof (2018-01-09),

15. 9816403 - Thermal energy conversion method (2017-11-14),

Company Overview

Echogen Power Systems, LLC, based in Akron, OH, specializes in advanced energy solutions focusing on supercritical carbon dioxide technologies. The company develops innovative systems for thermal energy conversion and waste heat recovery, aiming to enhance energy efficiency across various applications. Their expertise extends to pumped thermal energy storage and turbopump management, leveraging hydrostatic bearings and mass management control to optimize performance. Echogen is dedicated to transforming energy systems for a sustainable future.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

41 Patents

#16 in Akron, OH

#359 in Ohio

#8,447 in US

#16,725 in the World

Akron, OH, United States of America

Echogen Power Systems, LLC

Forward Citations = 2,636

17 inventors:

Timothy James Held (26 out of 52 patents)

Michael Louis Vermeersch (11 out of 21 patents)

Jason D Miller (10 out of 32 patents)

4. Stephen R Hostler (8 out of 8 patents)

5. Tao Xie (7 out of 23 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Echogen Power Systems, LLC. Retrieved from https://idiyas.com/company/echogen-power-systems

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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