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For the Inventor, By the Inventor

Waltham, MA, United States of America

A123 Systems LLC


USPTO Granted Patents = 142



Trademarks = 9

Forward Citations = 1,152

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176 inventors (with patents filed for the assignee):

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

silverMedal Antoni S Gozdz (24 out of 48 patents)

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

4.  Chuanjing Xu (13 out of 15 patents)

5.  Derek C Johnson (13 out of 22 patents)

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

7.  Richard K Holman (11 out of 33 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 15 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:
Battery Management System
Lithium-Ion Battery
Electrochemical Cell
Cathode Materials
High Power Electrode
Solid-State Battery
Electrolyte Formulation
Protection Circuit
Nanoscale Pore Structure
Composite Battery Cell
Doping Techniques
Battery Crush Protection

142 patents:

1. 12512515 - Electrolyte compositions for lithium ion batteries (2025-12-30),
2. 12476239 - Method and systems for metal doping on battery cathode materials (2025-11-18),
3. 12418019 - Cathode with pre-lithiation coating and methods for preparation and use (2025-09-16),
4. 12412920 - Nanoscale pore structure cathode for high power applications and material synthesis methods (2025-09-09),
5. 12362354 - Method and systems for coated cathode materials and use of coated cathode materials (2025-07-15),
6. 12272823 - Polymer binder additives for electrodes (2025-04-08),
7. 12266924 - Protection circuit for battery management system (2025-04-01),
8. 12266923 - Protection circuit for battery management system (2025-04-01),
9. 12244003 - Lithium tetraborate glass coating on cathode materials for improving safety and cycling stability (2025-03-04),
10. 12199246 - Stacked prismatic architecture for electrochemical cell (2025-01-14),
11. 12183912 - Methods and systems for dry surface doping of cathode materials (2024-12-31),
12. 12062757 - Systems and methods for a composite solid-state battery cell with an ionically conductive polymer electrolyte (2024-08-13),
13. 12009507 - Methods and systems for salt-rinse surface doping of electrode materials (2024-06-11),
14. 11916185 - Nanoscale pore structure cathode for high power applications and material synthesis methods (2024-02-27),
15. 11881707 - Reverse bias protection circuit for a vehicle battery system (2024-01-23),
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 - Dec 30 2025

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142 Patents

#9 in Waltham, MA

#141 in Massachusetts

#2,658 in US

#5,574 in the World

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Waltham, MA, United States of America

A123 Systems LLC

Forward Citations = 1,152

176 inventors:

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

silverMedal Antoni S Gozdz (24 out of 48 patents)

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

4.  Chuanjing Xu (13 out of 15 patents)

5.  Derek C Johnson (13 out of 22 patents)

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