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For the Inventor, By the Inventor

Mansfield, OH, United States of America

Therm-O-Disc, Incorporated


USPTO Granted Patents = 183

% Expired Patents = 7.7



Trademarks = 9

Forward Citations = 1,696

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136 inventors (with patents filed for the assignee):

goldMedal Prasad S Khadkikar (14 out of 21 patents)

silverMedal Donald E Place (13 out of 13 patents)

bronzeMedal Jeffrey A West (12 out of 12 patents)

4.  Bernd D Zimmermann (12 out of 15 patents)

5.  James A Tennant (11 out of 12 patents)

6.  Edward John Blok (11 out of 87 patents)

7.  James B Kalapodis (11 out of 12 patents)

8.  William F Quinn (10 out of 11 patents)

9.  Tung-Sheng Yang (9 out of 10 patents)

10.  Donald J Schmitt (9 out of 9 patents)

11.  Richard E Welch (8 out of 11 patents)

12.  Derek J Rose (7 out of 7 patents)

13.  Ronald L Holden (7 out of 7 patents)

14.  Praveen C Ramamurthy (6 out of 6 patents)

15.  David Reynolds (6 out of 6 patents)


Core Competencies:
Thermal Cut-off Device
Temperature Sensor
Vapor Sensor
Fluid Flow Rate Sensor
High Sensitivity Diode
Robust Gas Sensor
Capacitive Liquid Level Sensor
Wireless Temperature Sensor
Bimetal Snap Disc Thermostat
PTC Circuit Protector
Conductive Polymer Compositions
Pressure Sensor Assembly

183 patents:

1. 12755914 - Thermal cutoff device pellet composition (2026-10-06),
2. 12368013 - Thermal cut-off device for high power applications (2025-07-22),
3. 12276575 - Sensor assembly and refrigerant sensing system (2025-04-14),
4. 12241810 - Sensor assembly (2025-03-04),
5. 12130165 - Capacitive liquid level sensor (2024-10-29),
6. 12104809 - Robust gas sensor for harsh environments (2024-10-01),
7. 12085458 - Temperature sensor probe (2024-09-10),
8. D1031467 - Dual probe sensor (2024-06-18),
9. D1030526 - Single probe sensor (2024-06-11),
10. 11047753 - Pressure sensor assembly and method for manufacturing a pressure sensor assembly (2021-06-29),
11. 10249460 - High thermal stability thermal cutoff device pellet composition (2019-04-02),
12. 10041818 - Wireless temperature and/or humidity sensor assembly (2018-08-07),
13. 9779901 - High temperature material compositions for high temperature thermal cutoff devices (2017-10-03),
14. 9378910 - Thermal cut-off device (2016-06-28),
15. 9171654 - High thermal stability pellet compositions for thermal cutoff devices and methods for making and use thereof (2015-10-27),
Therm-O-Disc, Incorporated, based in Mansfield, Ohio, specializes in the development and manufacturing of advanced temperature sensing technologies. The company focuses on a diverse range of products, including thermal cut-off devices, temperature sensors, and various fluid flow rate sensors. Their innovations extend to high sensitivity diodes and robust gas sensors, catering to industries that require precise thermal management and monitoring solutions. With a commitment to quality and reliability, Therm-O-Disc plays a pivotal role in enhancing safety and efficiency across multiple applications.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Therm-O-Disc, Incorporated
183 Patents

#1 in Mansfield, OH

#99 in Ohio

#2,221 in US

#4,562 in the World

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

Therm-O-Disc, Incorporated

Forward Citations = 1,696

136 inventors:

goldMedal Prasad S Khadkikar (14 out of 21 patents)

silverMedal Donald E Place (13 out of 13 patents)

bronzeMedal Jeffrey A West (12 out of 12 patents)

4.  Bernd D Zimmermann (12 out of 15 patents)

5.  James A Tennant (11 out of 12 patents)

Please report any incorrect information to [email protected]
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