For the Inventor, By the Inventor

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Wilsonville, OR, United States of America

Ess Tech, Inc.

USPTO Granted Patents = 80

% Expired Patents = 6.3

EPO Patents = 4

Trademarks = 3

Forward Citations = 680

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32 inventors (with patents filed for the assignee):

Yang Song (55 out of 61 patents)

Craig E Evans (43 out of 61 patents)

Timothy J McDonald (14 out of 14 patents)

4. Sean Casey (12 out of 12 patents)

5. Thiago Groberg (11 out of 11 patents)

6. Kenneth Kiyoshi Fisher (6 out of 6 patents)

7. Alexandria Behr (4 out of 4 patents)

8. Aaron Vanderzanden (4 out of 4 patents)

9. Art Bertolero (3 out of 6 patents)

10. Brady Thompson (3 out of 3 patents)

11. Evan Doremus (2 out of 2 patents)

12. Steve Ernst (2 out of 3 patents)

13. Isaac Walker-Stern (2 out of 4 patents)

14. Steve Geyster (2 out of 9 patents)

15. Tamer Ibrahim (2 out of 67 patents)

Core Competencies:

Redox Flow Battery

Energy Density

Electrolyte Management

Hybrid Systems

Bipolar Plate

Electrode Assembly

Performance Recovery

Hydration

Cost-Efficiency

Manufacturing

Power Delivery

State of Charge

80 patents: Sort by Forward Citations

1. 12283815 - Methods and systems for managing energy consumption of cryptocurrency mining (2025-04-21),

2. 12283731 - Cost-efficient high energy density redox flow battery (2025-04-21),

3. 12283730 - Cost-efficient high energy density redox flow battery (2025-04-21),

4. 12266829 - Multi-stage rebalancing reactor for redox flow battery system (2025-04-01),

5. 12255370 - Electrode assembly for a redox flow battery (2025-03-18),

6. 12191548 - Hybrid redox fuel cell system (2025-01-07),

7. 12176590 - Flow battery cleansing cycle to maintain electrolyte health and system performance (2024-12-24),

8. 12160025 - Double-stack redox flow battery (2024-12-03),

9. 12132241 - Method and system for rebalancing electrolytes in a redox flow battery system (2024-10-29),

10. 12095130 - Methods and systems for surface disruption of bipolar plate and subsequent use thereof in redox flow battery (2024-09-17),

11. 12087984 - Hybrid redox fuel cell system (2024-09-10),

12. 12087981 - Electrolyte health management for redox flow battery (2024-09-10),

13. 12080931 - Redox flow battery and battery system (2024-09-03),

14. 12080930 - Integrated hydrogen recycle system using pressurized multichamber tank (2024-09-03),

15. 11996597 - Hybrid redox fuel cell system (2024-05-28),

Company Overview

Ess Tech, Inc. is a pioneering company based in Wilsonville, Oregon, specializing in the development of redox flow batteries. Their innovative approach focuses on enhancing energy density and optimizing electrolyte management, which are crucial for efficient energy storage solutions. The company is dedicated to advancing hybrid systems and improving components such as bipolar plates and electrode assemblies. Through their research, Ess Tech aims to enhance performance recovery and hydration processes, positioning themselves as a key player in the energy storage sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

80 Patents

#4 in Wilsonville, OR

#58 in Oregon

#4,629 in US

#9,449 in the World

Wilsonville, OR, United States of America

Ess Tech, Inc.

Forward Citations = 680

32 inventors:

Yang Song (55 out of 61 patents)

Craig E Evans (43 out of 61 patents)

Timothy J McDonald (14 out of 14 patents)

4. Sean Casey (12 out of 12 patents)

5. Thiago Groberg (11 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ess Tech, Inc.. Retrieved from https://idiyas.com/company/ess-tech

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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