% Expired Patents = 83.3

Forward Citations = 71

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8 inventors (with patents filed for the assignee):

Peter Novak (4 out of 14 patents)

Yevgen Kalynushkin (2 out of 5 patents)

Victor Gurin (2 out of 2 patents)

4. Bary Wallace Wilson (1 out of 15 patents)

5. Chad Hartzog (1 out of 9 patents)

6. Tatsuo Shimizu (1 out of 3 patents)

7. Zenzou Hashimoto (1 out of 1 patent)

8. Miron Prakhin (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 8709648 - Conductor-mixed active electrode material, electrode structure, rechargeable battery, and manufacturing method of conductor-mixed active electrode material (2014-04-29),

2. 8581549 - System and method for balancing a state of charge of series connected cells (2013-11-12),

3. 8142569 - Apparatus for forming structured material for energy storage device and method (2012-03-27),

4. 7951242 - Apparatus for forming structured material for energy storage device and method (2011-05-31),

5. 7011048 - Method and apparatus for liquid fuel preparation to improve combustion (2006-03-14),

6. 6979508 - Fuel cell with integrated feedback control (2005-12-27),

Company Overview

Ener1, Inc. is a leading manufacturer of advanced lithium-ion batteries for electric vehicles, grid energy storage, and industrial applications. The company is committed to providing innovative energy solutions to help reduce greenhouse gas emissions and create a more sustainable future. With a focus on research and development, Ener1 continues to push the boundaries of battery technology to meet the growing demand for clean energy solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#146 in Indianapolis, IN

#630 in Indiana

#44,981 in US

Indianapolis, IN, United States of America

Ener1, Inc.

Forward Citations = 71

8 inventors:

Peter Novak (4 out of 14 patents)

Yevgen Kalynushkin (2 out of 5 patents)

Victor Gurin (2 out of 2 patents)

4. Bary Wallace Wilson (1 out of 15 patents)

5. Chad Hartzog (1 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ener1, Inc.. Retrieved from https://idiyas.com/company/ener1

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]