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For the Inventor, By the Inventor

Livermore, CA, United States of America

U.S. Windpower, Inc.

Calculating rank
USPTO Granted Patents = 10

Forward Citations = 949

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11 inventors (with patents filed for the assignee):

goldMedal William L Erdman (4 out of 30 patents)

silverMedal Allan Chertok (2 out of 12 patents)

bronzeMedal William E Holley (2 out of 16 patents)

4.  Robert D Richardson (1 out of 10 patents)

5.  David Deam (1 out of 12 patents)

6.  John Gjertsen, Sr (1 out of 1 patent)

7.  Louis Manfredi (1 out of 1 patent)

8.  Herbert G Weiss (1 out of 1 patent)

9.  Richard D'Amato (1 out of 1 patent)

10.  Joel Donahue (1 out of 1 patent)

11.  William Widnall (1 out of 1 patent)


10 patents:

1. 5289041 - Speed control system for a variable speed wind turbine (1994-02-22),
2. 5225712 - Variable speed wind turbine with reduced power fluctuation and a static (1993-07-06),
3. 5187427 - Static reactive power compensator (1993-02-16),
4. 5172310 - Low impedance bus for power electronics (1992-12-15),
5. 5155375 - Speed control system for a variable speed wind turbine (1992-10-13),
6. 5083039 - Variable speed wind turbine (1992-01-21),
7. 4490093 - Windpower system (1984-12-25),
8. 4474531 - Windmill with direction-controlled feathering (1984-10-02),
9. 4469956 - Windmill support structure (1984-09-04),
10. 4426192 - Method and apparatus for controlling windmill blade pitch (1984-01-17),
Company Overview
U.S. Windpower, Inc. is a prominent player in the renewable energy sector, focusing on the development and manufacturing of wind energy solutions. Based in Livermore, California, the company specializes in advanced wind turbine technology and related systems, contributing to the growth of sustainable energy sources. With a commitment to innovation, U.S. Windpower engages in research and development aimed at enhancing the efficiency and reliability of wind power generation, supporting a cleaner energy future.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

10 Patents

#25 in Livermore, CA

#7,121 in California

#29,892 in US

#56,119 in the World

Livermore, CA (US)
Livermore, CA, United States of America

U.S. Windpower, Inc.

Forward Citations = 949

11 inventors:

goldMedal William L Erdman (4 out of 30 patents)

silverMedal Allan Chertok (2 out of 12 patents)

bronzeMedal William E Holley (2 out of 16 patents)

4.  Robert D Richardson (1 out of 10 patents)

5.  David Deam (1 out of 12 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: U.S. Windpower, Inc.. Retrieved from https://idiyas.com/company/u-s-windpower

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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