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For the Inventor, By the Inventor

Waltham, MA, United States of America

A123 Systems LLC


USPTO Granted Patents = 150

% Expired Patents = 12.7



Trademarks = 7

Forward Citations = 1,197

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202 inventors (with patents filed for the assignee):

goldMedal Yet-Ming Chiang (27 out of 137 patents)

silverMedal Antoni S Gozdz (24 out of 49 patents)

bronzeMedal Gilbert N Riley, Jr (19 out of 74 patents)

4.  Derek C Johnson (15 out of 24 patents)

5.  Chuanjing Xu (13 out of 15 patents)

6.  Andrew C Chu (13 out of 15 patents)

7.  Richard K Holman (11 out of 34 patents)

8.  Brian Moorhead (10 out of 22 patents)

9.  Jonathan Hostler (10 out of 10 patents)

10.  Paul W Firehammer (10 out of 21 patents)

11.  Maha Hammoud (9 out of 9 patents)

12.  Konstantin Tikhonov (9 out of 17 patents)

13.  Andrew L Loxley (9 out of 54 patents)

14.  Brian D Rutkowski (9 out of 46 patents)

15.  William H Gardner (8 out of 13 patents)


Core Competencies:
Lithium-Ion Batteries
Cathode Materials
Electrolyte Formulations
High Power Electrodes
Battery Management Systems
Prismatic Battery Packs
Overcharge Protection
Surface Modification

150 patents:

1. 12738536 - Composite solid-state battery cell (2026-09-15),
2. 12671147 - Battery tab configuration (2026-06-30),
3. D1131359 - Casing (2026-06-23),
4. 12665182 - Methods and systems for a lithium-ion battery cell cathode (2026-06-23),
5. D1128688 - Display screen or portion thereof with graphical user interface (2026-06-02),
6. 12626926 - Electrode with flame retardant additives and method and systems for preparation and use (2026-05-12),
7. 12620634 - Predictive thermal models for current and power capability estimation (2026-05-05),
8. 12555796 - Passivated lithium nitride as cathode pre-lithiation reagent (2026-02-17),
9. 12512515 - Electrolyte compositions for lithium ion batteries (2025-12-30),
10. 12476239 - Method and systems for metal doping on battery cathode materials (2025-11-18),
11. 12418019 - Cathode with pre-lithiation coating and methods for preparation and use (2025-09-16),
12. 12412920 - Nanoscale pore structure cathode for high power applications and material synthesis methods (2025-09-09),
13. 12362354 - Method and systems for coated cathode materials and use of coated cathode materials (2025-07-15),
14. 12272823 - Polymer binder additives for electrodes (2025-04-08),
15. 12266924 - Protection circuit for battery management system (2025-04-01),
A123 Systems LLC is a leading developer and manufacturer of advanced lithium-ion batteries and battery systems for electric vehicles and other applications. With a focus on innovative technology and high-performance solutions, A123 Systems is dedicated to providing sustainable energy solutions to meet the growing demand for clean and efficient transportation.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

A123 Systems LLC
150 Patents

#12 in Waltham, MA

#140 in Massachusetts

#2,621 in US

#5,429 in the World

Waltham, MA (US)
Waltham, MA, United States of America

A123 Systems LLC

Forward Citations = 1,197

202 inventors:

goldMedal Yet-Ming Chiang (27 out of 137 patents)

silverMedal Antoni S Gozdz (24 out of 49 patents)

bronzeMedal Gilbert N Riley, Jr (19 out of 74 patents)

4.  Derek C Johnson (15 out of 24 patents)

5.  Chuanjing Xu (13 out of 15 patents)

Please report any incorrect information to [email protected]
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