Forward Citations = 276

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5 inventors (with patents filed for the assignee):

John K Penrod (5 out of 6 patents)

Harold E Hancock (2 out of 2 patents)

Markus F Hirschbold (1 out of 30 patents)

4. I Ross Macfarlane (1 out of 9 patents)

5. Werner Reinhard Simbeck (1 out of 7 patents)

8 patents: Sort by Forward Citations

1. D432934 - Electric meter face cover (2000-10-31),

2. 4389691 - Solid state arc suppression device (1983-06-21),

3. 4251845 - Arc suppressor circuit (1981-02-17),

4. 4152634 - Power contactor and control circuit (1979-05-01),

5. 4060847 - Cooling arrangement for electrical power contactor (1977-11-29),

6. 4025820 - Contactor device including arc supression means (1977-05-24),

7. 3993984 - Electronic underfrequency relay (1976-11-23),

8. 3982137 - Arc suppressor circuit (1976-09-21),

Company Overview

Power Management Corporation is a leading provider of innovative power management solutions for businesses worldwide. Our expertise includes energy efficiency consulting, system design, equipment installation, and ongoing maintenance services. With a focus on sustainability and cost savings, we help our clients optimize their power usage and reduce their environmental impact. Contact us today to learn more about how we can help your organization achieve its power management goals.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#73 in Dayton, OH

#1,440 in Ohio

#35,924 in US

Dayton, OH, United States of America

Power Management Corporation

Forward Citations = 276

5 inventors:

John K Penrod (5 out of 6 patents)

Harold E Hancock (2 out of 2 patents)

Markus F Hirschbold (1 out of 30 patents)

4. I Ross Macfarlane (1 out of 9 patents)

5. Werner Reinhard Simbeck (1 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Power Management Corporation. Retrieved from https://idiyas.com/company/power-management

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]