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For the Inventor, By the Inventor

St. Louis, MO, United States of America

Watlow Electric Manufacturing Company


USPTO Granted Patents = 341



Trademarks = 45

Forward Citations = 2,847

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247 inventors (with patents filed for the assignee):

goldMedal Louis P Steinhauser (52 out of 57 patents)

silverMedal Kevin Ptasienski (45 out of 46 patents)

bronzeMedal Mark Denis Everly (38 out of 38 patents)

4.  Sanhong Zhang (33 out of 33 patents)

5.  Theodore Thomas Von Arx (31 out of 38 patents)

6.  Robert A Pape (30 out of 30 patents)

7.  David P Culbertson (29 out of 33 patents)

8.  Jeremy Ohse (28 out of 28 patents)

9.  Stanton Hopkins Breitlow (28 out of 32 patents)

10.  Cal Thomas Swanson (26 out of 26 patents)

11.  John Frederic Lemke (24 out of 26 patents)

12.  Jacob Robert Lindley (22 out of 22 patents)

13.  Keith D Ness (22 out of 23 patents)

14.  Mohammad Nosrati (21 out of 21 patents)

15.  William Bohlinger (20 out of 23 patents)


Core Competencies:
Fluid Heating Systems
Power Converters
Thermal Calibration
Temperature Detection Probes
Cable Heater Assemblies
Material Deposit Detection
Electric Heater Control
Thermal Dynamic Response
Modular Heater Assemblies
Semiconductor Processing Equipment
High Power Density Heating
Virtual Sensing Systems

341 patents:

1. 12480686 - Encapsulated bus circuit for fluid heating systems (2025-11-25),
2. 12449449 - Power converter for a thermal system (2025-10-21),
3. 12436175 - Power converter for a thermal system (2025-10-07),
4. 12402211 - Isolated power converter for a thermal system (2025-08-26),
5. 12399518 - Dynamic calibration of a control system controlling a heater (2025-08-26),
6. 12397379 - Nickel-carbon and nickel-cobalt-carbon brazes and brazing processes for joining ceramics and metals and semiconductor processing and industrial equipment using same (2025-08-26),
7. 12379442 - Method and system for calibrating a controller that determines a resistance of a load (2025-08-05),
8. 12374471 - Cable heater assembly with cable end adapter system (2025-07-29),
9. 12372416 - Temperature detector probe with thermal isolation (2025-07-29),
10. 12369228 - Method and system for providing variable ramp-down control for an electric heater (2025-07-22),
11. 12351907 - Method of monitoring a surface condition of a component (2025-07-08),
12. 12347703 - Systems and methods for detecting the presence of deposits in fluid flow conduits (2025-07-01),
13. 12328799 - System and method for calibrating a control system operating an electric heater (2025-06-10),
14. 12326107 - Dual-purpose heater and fluid flow measurement system (2025-06-10),
15. 12286917 - High power density insulated exhaust heating system (2025-04-29),
Watlow Electric Manufacturing Company is a leading provider of industrial thermal solutions. With over 90 years of experience, Watlow offers innovative custom-engineered solutions for a wide range of industries including semiconductor, energy, aerospace, and foodservice. Their products include electric heaters, temperature controllers, sensors, and thermal systems.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

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341 Patents

#10 in St. Louis, MO

#15 in Missouri

#1,268 in US

#2,583 in the World

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St. Louis, MO, United States of America

Watlow Electric Manufacturing Company

Forward Citations = 2,847

247 inventors:

goldMedal Louis P Steinhauser (52 out of 57 patents)

silverMedal Kevin Ptasienski (45 out of 46 patents)

bronzeMedal Mark Denis Everly (38 out of 38 patents)

4.  Sanhong Zhang (33 out of 33 patents)

5.  Theodore Thomas Von Arx (31 out of 38 patents)

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