For the Inventor, By the Inventor

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Austin, TX, United States of America

Active Power, Inc.

Calculating rank

USPTO Granted Patents = 44

% Expired Patents = 13.6

EPO Patents = 1

Trademarks = 2

Forward Citations = 1,130

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35 inventors (with patents filed for the assignee):

Joseph F Pinkerton (28 out of 105 patents)

David B Clifton (12 out of 18 patents)

David E Perkins (10 out of 11 patents)

4. James A Andrews (6 out of 21 patents)

5. David A Badger (5 out of 35 patents)

6. Robert S Hudson (5 out of 9 patents)

7. Scott R Little (5 out of 10 patents)

8. Karl Thomas Schuetze (4 out of 5 patents)

9. David J Beatty (3 out of 12 patents)

10. Donald M Hudson (2 out of 2 patents)

11. Gail Roberts (2 out of 3 patents)

12. William D Batton (2 out of 2 patents)

13. James Arnold Keck (1 out of 3 patents)

14. Randal A Lee (1 out of 26 patents)

15. Richard Greer (1 out of 1 patent)

Core Competencies:

Uninterruptible Power Supply

Energy Storage

Thermal Storage

Flywheel Technology

Backup Energy

Power Systems

Inductor-Alternator

Motor-Generator

Heat Control

Pressure Control

Fluid Management

Battery Protection

44 patents: Sort by Forward Citations

1. 9627923 - Apparatus and methods for backfeed detection in and control of uninterruptible power systems (2017-04-18),

2. 8822822 - Insulation system for prevention of corona discharge (2014-09-02),

3. 8671686 - Systems and methods for providing backup energy to a load (2014-03-18),

4. 8333330 - Systems and methods for controlling temperature and pressure of fluids (2012-12-18),

5. 7918091 - Systems and methods for controlling humidity (2011-04-05),

6. 7753646 - Systems and methods for cooling bearings (2010-07-13),

7. 7750518 - Transient energy systems and methods for use of the same (2010-07-06),

8. 7693402 - Thermal storage unit and methods for using the same to heat a fluid (2010-04-06),

9. 7642664 - Transient energy systems and methods for use of the same (2010-01-05),

10. 7425807 - Transient energy systems and methods for use of the same (2008-09-16),

11. 7400052 - Transient energy systems and methods for use of the same (2008-07-15),

12. 7314059 - Systems and methods for controlling pressure of fluids (2008-01-01),

13. 7127895 - Systems and methods for providing backup energy to a load (2006-10-31),

14. 7086231 - Thermal and compressed air storage system (2006-08-08),

15. 7030593 - Multiple path variable speed constant frequency device having automatic power path selection capability (2006-04-18),

Company Overview

Active Power, Inc., based in Austin, Texas, specializes in advanced energy solutions, focusing on uninterruptible power supply systems and energy storage technologies. The company is recognized for its innovative thermal storage units and flywheel energy systems, which provide reliable backup energy solutions and enhance fluid temperature control. Active Power's expertise extends to inductor-alternators and corona discharge prevention, positioning it as a leader in the energy management sector, dedicated to delivering efficient and sustainable power solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

44 Patents

#67 in Austin, TX

#443 in Texas

#7,963 in US

#15,771 in the World

Austin, TX, United States of America

Active Power, Inc.

Forward Citations = 1,130

35 inventors:

Joseph F Pinkerton (28 out of 105 patents)

David B Clifton (12 out of 18 patents)

David E Perkins (10 out of 11 patents)

4. James A Andrews (6 out of 21 patents)

5. David A Badger (5 out of 35 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Active Power, Inc.. Retrieved from https://idiyas.com/company/active-power

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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