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For the Inventor, By the Inventor

Dayton, OH, United States of America

Ledex, Inc.

Calculating rank
USPTO Granted Patents = 18

Forward Citations = 247

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9 inventors (with patents filed for the assignee):

goldMedal George T Coors (5 out of 5 patents)

silverMedal John L Myers (5 out of 8 patents)

bronzeMedal Kenneth L Roy (3 out of 4 patents)

4.  David B Mohler (2 out of 13 patents)

5.  Philip E Fugate (2 out of 2 patents)

6.  Gerald H Leland (1 out of 1 patent)

7.  Larry L Quigley (1 out of 1 patent)

8.  William D Sadgebury (1 out of 1 patent)

9.  James E Burton (1 out of 1 patent)


18 patents:

1. 4812884 - Three-dimensional double air gap high speed solenoid (1989-03-14),
2. 4660010 - Rotary latching solenoid (1987-04-21),
3. 4470030 - Trip solenoid (1984-09-04),
4. 4442418 - Trip solenoid (1984-04-10),
5. 4309582 - Push button switch for a controller (1982-01-05),
6. 4306208 - Joy-stick controller (1981-12-15),
7. 4306206 - Linear solenoid device (1981-12-15),
8. 4282501 - Bi-directional linear actuator (1981-08-04),
9. 4272748 - Print wire solenoid (1981-06-09),
10. 4235114 - Material testing device (1980-11-25),
11. 4217567 - Tubular solenoid (1980-08-12),
12. 4200401 - Print wire solenoid (1980-04-29),
13. 4157521 - Rotary solenoid (1979-06-05),
14. 4153890 - Coil compressed solenoids subassembly (1979-05-08),
15. 4135150 - Decoder circuit for detecting sequentially presented code digit signals (1979-01-16),
Company Overview
Ledex, Inc. is a specialized manufacturer based in Dayton, Ohio, focusing on innovative electromagnetic solutions. The company is renowned for its development of precision motion control devices, including solenoids and actuators, which are utilized across various industries such as automotive, aerospace, and industrial automation. Ledex emphasizes advanced engineering and design, catering to the evolving needs of its clients by integrating cutting-edge technology into its product offerings, ensuring reliability and performance in demanding applications.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 10 2026

18 Patents

#37 in Dayton, OH

#768 in Ohio

#18,004 in US

#34,321 in the World

Dayton, OH (US)
Dayton, OH, United States of America

Ledex, Inc.

Forward Citations = 247

9 inventors:

goldMedal George T Coors (5 out of 5 patents)

silverMedal John L Myers (5 out of 8 patents)

bronzeMedal Kenneth L Roy (3 out of 4 patents)

4.  David B Mohler (2 out of 13 patents)

5.  Philip E Fugate (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ledex, Inc.. Retrieved from https://idiyas.com/company/ledex

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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