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For the Inventor, By the Inventor

St. Louis, MO, United States of America

Control Devices, Incorporated


USPTO Granted Patents = 40


Trademarks = 20

Forward Citations = 885

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32 inventors (with patents filed for the assignee):

goldMedal Michael J Purvis (8 out of 12 patents)

silverMedal Joseph L Krechel (7 out of 8 patents)

bronzeMedal Jonathan W Hill (6 out of 7 patents)

4.  Daniel A Lammers (5 out of 5 patents)

5.  Thomas M Kornblum (4 out of 4 patents)

6.  Paul F Ross, Ii (4 out of 4 patents)

7.  Bruce Dalton (3 out of 3 patents)

8.  Jason Farqué (2 out of 2 patents)

9.  Eric Farqué (2 out of 2 patents)

10.  Timothy Coste (2 out of 2 patents)

11.  Mark Cote (2 out of 2 patents)

12.  Jurgen Dorschky (2 out of 2 patents)

13.  David E Windsor (2 out of 2 patents)

14.  M Rutledge Flynn (2 out of 2 patents)

15.  Raymond P Schultz (2 out of 2 patents)


Core Competencies:
Cylinder Valve
Automatic Drain Valve
Pressure Washer Lance
Acoustic Transmitter
Torque Measurement
Ambient Light Sensor
Thermal Relief Valve
Multi-Function Light Sensor
Manifold Fitting
Solar Sensor
Check Valve
Ball Valve

40 patents:

1. 10295075 - Cylinder valve (2019-05-21),
2. 10197184 - Float (2019-02-05),
3. D838811 - Automatic drain valve (2019-01-22),
4. 10018301 - Drain valve (2018-07-10),
5. 10017006 - Roller kit for power washer surface cleaner attachment and corresponding method (2018-07-10),
6. D817474 - Condensate trap housing (2018-05-08),
7. 9535039 - Acoustic transmitter and method for underwater pipeline inspection gauges (2017-01-03),
8. D765222 - Pressure washer lance (2016-08-30),
9. 9172406 - Pressure resistant housing device for protecting an electromagnetic transmitter (2015-10-27),
10. 8327868 - Cylinder valve with thermal relief feature (2012-12-11),
11. 7289041 - Absolute position chain encoder (2007-10-30),
12. 7235765 - Solar sensor including reflective element to transform the angular response (2007-06-26),
13. 7159797 - Spray head (2007-01-09),
14. 6866062 - Check valve (2005-03-15),
15. 6752526 - Combined optical light pipe and protective enclosure (2004-06-22),
Control Devices, Incorporated is a leading manufacturer of industrial control valves and fluid power solutions. With over 50 years of experience, we design and produce a wide range of high-quality valves and devices used in a variety of industries, including manufacturing, oil and gas, automotive, and more. Our commitment to innovation, reliability, and customer satisfaction has established us as a trusted partner for businesses worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

40 Patents

#53 in St. Louis, MO

#103 in Missouri

#8,345 in US

#16,557 in the World

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St. Louis, MO, United States of America

Control Devices, Incorporated

Forward Citations = 885

32 inventors:

goldMedal Michael J Purvis (8 out of 12 patents)

silverMedal Joseph L Krechel (7 out of 8 patents)

bronzeMedal Jonathan W Hill (6 out of 7 patents)

4.  Daniel A Lammers (5 out of 5 patents)

5.  Thomas M Kornblum (4 out of 4 patents)

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