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Blanchester, OH, United States of America

Timothy James Held

USPTO Granted Patents = 51 (Patent Applications = 7)

CIPO Patents = 7 (Patent Applications = 1)

EPO Patents = 17 (Patent Applications = 12)

Average Co-Inventor Count = 2.2

ph-index = 26

Forward Citations = 2,063(Granted Patents)

Forward Citations (Not Self Cited) = 1,980(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Blanchester, OH (US) (2002 - 2014)
Akron, OH (US) (2012 - 2023)

Company Filing History:

Echogen Power Systems, LLC

19 out of 51,907

General Electric Company

Supercritical Storage Company, Inc.

Echogen Power System, LLC

5. 1 out of 362

Dresser-rand Company

Echogen Power Systems (delaware), Inc.

Years Active: 2002-2025

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Areas of Expertise:

Pumped Thermal Energy Storage

Heat Engine Systems

Supercritical Carbon Dioxide Circuits

Thermal Energy Conversion

Gas Turbine Engines

Working Fluid Management

Combustor Acoustics

Waste Heat Recovery

Electric Thermal Energy Storage

Thermal Issues Management

Fluid Injection Methods

Cascade Heat Engine Cycles

51 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12331664 - Waste heat integration into pumped thermal energy storage (2025-06-17),

2. 11629638 - Three reservoir electric thermal energy storage system (2023-04-18),

3. 11585244 - Systems and methods for generating electricity via a pumped thermal energy storage system (2023-02-21),

4. 11435120 - Split expansion heat pump cycle (2022-09-06),

5. 11187112 - Systems and methods for generating electricity via a pumped thermal energy storage system (2021-11-30),

6. 10934895 - Heat engine systems with high net power supercritical carbon dioxide circuits (2021-03-02),

7. 10883388 - Systems and methods for generating electricity via a pumped thermal energy storage system (2021-01-05),

8. 10495098 - Systems and methods for balancing thrust loads in a heat engine system (2019-12-03),

9. 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),

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. 9863282 - Automated mass management control (2018-01-09),

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

15. 9458738 - Heat engine and heat to electricity systems and methods with working fluid mass management control (2016-10-04),

Title: The Inventor Timothy James Held

Introduction: Timothy James Held is a renowned inventor based in Blanchester, Ohio. He is known for his innovative contributions to various fields.

Latest Patents: Timothy James Held holds several patents in the areas of technology and engineering, showcasing his dedication to pushing the boundaries of innovation.

Career Highlights: Throughout his career, Timothy James Held has demonstrated a keen ability to transform ideas into tangible inventions that have made a significant impact in the industry.

Collaborations: Timothy James Held has collaborated with leading companies and research institutions to further develop his inventions, highlighting his commitment to advancing technology through partnerships.

Conclusion: In conclusion, Timothy James Held's passion for innovation and his impressive track record of patents solidify his position as a prominent figure in the world of inventors.

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