For the Inventor, By the Inventor

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Farmington Hills, MI, United States of America

Ekstrom Industries, Inc.

USPTO Granted Patents = 63

% Expired Patents = 28.6

CIPO Patents = 1

Trademarks = 6

Forward Citations = 1,280

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23 inventors (with patents filed for the assignee):

Darrell A Robinson (58 out of 61 patents)

Allen V Pruehs (34 out of 38 patents)

Karl R Loehr (13 out of 13 patents)

4. Robert O Learmont (11 out of 11 patents)

5. Robert Goozen (7 out of 7 patents)

6. Michael E Lewis (6 out of 7 patents)

7. John T Shincovich (5 out of 7 patents)

8. Albert K Langdon (3 out of 4 patents)

9. Jeffrey John Hanft (2 out of 6 patents)

10. John Williams (2 out of 2 patents)

11. Gregory L Zook (1 out of 2 patents)

12. Jan K Michalek (1 out of 15 patents)

13. Allen V Preuhs (1 out of 1 patent)

14. Christophor D Napier (1 out of 1 patent)

15. Robert Groozen (1 out of 1 patent)

Core Competencies:

Tamper Detection

Watthour Meter

Socket Adapter

Electrical Service

Safety Shield

Circuit Breaker

Remote Meter Reading

Electrical Connections

Service Disconnect

Modular Design

Energy Monitoring

Electrical Enclosure

63 patents: Sort by Forward Citations

1. 8149119 - Utility meter tamper monitoring system and method (2012-04-03),

2. 8149114 - Utility meter tamper monitoring system and method (2012-04-03),

3. 8002578 - Watthour meter socket lock adapter (2011-08-23),

4. D642536 - Electrical service socket adapter housing (2011-08-02),

5. 7650767 - Lock ring for a watthour meter application (2010-01-26),

6. 7458846 - Electrical power service apparatus with external circuit breaker rocker switch reset (2008-12-02),

7. 7315442 - Secure electrical service entrance power access (2008-01-01),

8. 7232335 - K-series watthour meter socket adapter (2007-06-19),

9. 7189109 - Modular watthour meter socket and test switch (2007-03-13),

10. 7153157 - Terminal block jumper (2006-12-26),

11. 6975504 - Overall watthour metter enclosure safety replacement window (2005-12-13),

12. 6846199 - Watthour meter socket adapter (2005-01-25),

13. 6844825 - Electric energy service apparatus with tamper detection (2005-01-18),

14. 6823563 - Removably attachable cover handles for electric power watthour meter (2004-11-30),

15. 6766698 - Meter socket jaw tester apparatus and test method (2004-07-27),

Ekstrom Industries, Inc., based in Farmington Hills, MI, specializes in utility meter technology, focusing on innovative solutions for electrical service management. The company develops advanced tamper detection systems and watthour meters, enhancing the reliability and safety of electrical connections. Their product offerings include socket adapters, safety shields, and circuit breakers, as well as remote meter reading technologies that streamline utility operations. Ekstrom Industries is committed to improving energy management through cutting-edge technology.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

63 Patents

#4 in Farmington Hills, MI

#230 in Michigan

#5,753 in US

#11,611 in the World

Farmington Hills, MI, United States of America

Ekstrom Industries, Inc.

Forward Citations = 1,280

23 inventors:

Darrell A Robinson (58 out of 61 patents)

Allen V Pruehs (34 out of 38 patents)

Karl R Loehr (13 out of 13 patents)

4. Robert O Learmont (11 out of 11 patents)

5. Robert Goozen (7 out of 7 patents)

Please report any incorrect information to [email protected]

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