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Westborough, MA, United States of America

American Superconductor Corporation

Calculating rank

USPTO Granted Patents = 238

% Expired Patents = 18.1

CIPO Patents = 7

EPO Patents = 43

Forward Citations = 2,425

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168 inventors (with patents filed for the assignee):

Gilbert N Riley, Jr (39 out of 74 patents)

Martin W Rupich (35 out of 43 patents)

Alexander Otto (31 out of 34 patents)

4. Gregory L Snitchler (29 out of 32 patents)

5. Peter M Winn (23 out of 23 patents)

6. James F Maguire (22 out of 24 patents)

7. Eric R Podtburg (22 out of 23 patents)

8. Douglas C Folts (21 out of 25 patents)

9. Bruce B Gamble (21 out of 27 patents)

10. Qi Li (21 out of 26 patents)

11. Swarn S Kalsi (20 out of 22 patents)

12. William L Carter (18 out of 28 patents)

13. Elliott D Thompson (16 out of 18 patents)

14. Jie Yuan (15 out of 15 patents)

15. Cornelis Leo Hans Thieme (15 out of 18 patents)

Core Competencies:

High Temperature Superconducting Wires

Electricity Transmission Cooling

Superconducting Cable Assembly

Power Conversion Systems

Static VAR Compensator

Fault Current Limiting

Wind Turbine Generators

Torque Transmission Assembly

Voltage Regulation

Cryogenic Transfer Lines

Composite Substrates

Cooling Technologies

238 patents: Sort by Forward Citations

1. 12635422 - Electro-formed metal foils (2026-05-19),

2. 12048253 - Electro-formed metal foils (2024-07-23),

3. 11794872 - Electrical power system for a watercraft (2023-10-24),

4. 11657930 - High temperature superconducting wires having increased engineering current densities (2023-05-23),

5. 11509139 - Load re-balancing on a multi-phase power system (2022-11-22),

6. 11390478 - Roll-to-roll apparatus for processing metal tapes with a ceramic coating (2022-07-19),

7. 11286910 - Yaw auto-calibration for a wind turbine generator (2022-03-29),

8. 11111903 - Yaw auto-calibration for a wind turbine generator (2021-09-07),

9. 10242770 - Long length high temperature superconducting wires with uniform ion implanted pinning microstructures (2019-03-26),

10. 10193340 - Multi-level cascaded H-bridge STATCOM circulating cooling fluid within enclosure (2019-01-29),

11. 10130009 - Natural convection cooling for power electronics systems having discrete power dissipation components (2018-11-13),

12. 10079558 - Switching scheme for static synchronous compensators using cascaded H-bridge converters (2018-09-18),

13. 9887025 - High temperature superconductor wire bundling system and method (2018-02-06),

14. 9653196 - Electricity transmission cooling system (2017-05-16),

15. 9646742 - Electricity transmission cooling system (2017-05-09),

Company Overview

American Superconductor Corporation, headquartered in Westborough, MA, specializes in high temperature superconductors and related technologies. The company develops advanced solutions such as high temperature superconducting wires and power conversion systems, which enhance electricity transmission efficiency and reliability. Their innovations also include superconducting cable assemblies, static VAR compensators, and fault current limiters, contributing to improved energy management in various applications, including wind turbine generators and torque transmission systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 10 2026

238 Patents

#5 in Westborough, MA

#107 in Massachusetts

#1,778 in US

#3,620 in the World

Westborough, MA, United States of America

American Superconductor Corporation

Forward Citations = 2,425

168 inventors:

Gilbert N Riley, Jr (39 out of 74 patents)

Martin W Rupich (35 out of 43 patents)

Alexander Otto (31 out of 34 patents)

4. Gregory L Snitchler (29 out of 32 patents)

5. Peter M Winn (23 out of 23 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: American Superconductor Corporation. Retrieved from https://idiyas.com/company/american-superconductor

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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