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For the Inventor, By the Inventor

Austin, TX, United States of America

Active Power, Inc.


USPTO Granted Patents = 44

% Expired Patents = 13.6


Trademarks = 2

Forward Citations = 1,123

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35 inventors (with patents filed for the assignee):

goldMedal Joseph F Pinkerton (28 out of 105 patents)

silverMedal David B Clifton (12 out of 18 patents)

bronzeMedal 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 25 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:

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),
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 based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Active Power, Inc.
44 Patents

#67 in Austin, TX

#443 in Texas

#7,949 in US

#15,738 in the World

Austin, TX (US)
Austin, TX, United States of America

Active Power, Inc.

Forward Citations = 1,123

35 inventors:

goldMedal Joseph F Pinkerton (28 out of 105 patents)

silverMedal David B Clifton (12 out of 18 patents)

bronzeMedal 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)

Please report any incorrect information to [email protected]
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