Blanchester, OH, United States of America

Timothy James Held

This inventor holds 52 USPTO granted patents and 6 published patent applications, plus 6 CIPO patents and 17 EPO patents, primarily in Thermal Energy Systems (CPC class F01K). Top assignees: Echogen Power Systems, LLC, General Electric Company, Supercritical Storage Company, Inc.. Active years: 2002-2026.

USPTO Granted Patents = 52 (Patent Applications = 6)

% Patents Active = 96.2

CIPO Patents = 6 (Patent Applications = 1)

EPO Patents = 17 (Patent Applications = 17)

Average Co-Inventor Count = 2.1

ph-index = 27

Forward Citations = 2,104(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:

26 out of 41

Echogen Power Systems, LLC

patents

19 out of 52,338

General Electric Company

patents

4 out of 4

Supercritical Storage Company, Inc.

Echogen Power System, LLC

patent

6. 1 out of 1

Echogen Power Systems (Delaware), Inc.

patent

Years Active: 2002-2026

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Areas of Expertise:

Heat Pump

Electricity Generation

Waste Heat Recovery

Thermal Energy Storage

Supercritical Carbon Dioxide

Gas Turbine Engine

Heat Engine Systems

Fluid Management

Thermal Conversion

Thrust Load Balancing

Combustor Acoustics

Refrigeration Cycle

52 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12516855 - High-temperature, dual rail heat pump cycle for high performance at high-temperature lift and range (2026-01-06),

2. 12331664 - Waste heat integration into pumped thermal energy storage (2025-06-17),

3. 11629638 - Three reservoir electric thermal energy storage system (2023-04-18),

4. 11585244 - Systems and methods for generating electricity via a pumped thermal energy storage system (2023-02-21),

5. 11435120 - Split expansion heat pump cycle (2022-09-06),

6. 11187112 - Systems and methods for generating electricity via a pumped thermal energy storage system (2021-11-30),

7. 10934895 - Heat engine systems with high net power supercritical carbon dioxide circuits (2021-03-02),

8. 10883388 - Systems and methods for generating electricity via a pumped thermal energy storage system (2021-01-05),

9. 10495098 - Systems and methods for balancing thrust loads in a heat engine system (2019-12-03),

10. 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),

11. 10024198 - Heat engine system including an integrated cooling circuit (2018-07-17),

12. 9932861 - Systems and methods for controlling backpressure in a heat engine system having hydrostaic bearings (2018-04-03),

13. 9926811 - Control methods for heat engine systems having a selectively configurable working fluid circuit (2018-03-27),

14. 9863282 - Automated mass management control (2018-01-09),

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

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.