For the Inventor, By the Inventor

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Ogdensburg, NY, United States of America

Defelsko Corporation

USPTO Granted Patents = 28

EPO Patents = 2

Trademarks = 10

Forward Citations = 290

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11 inventors (with patents filed for the assignee):

Frank J Koch (19 out of 24 patents)

Leon C Vandervalk (14 out of 17 patents)

David J Beamish (6 out of 6 patents)

4. Robert V Stachnik (2 out of 2 patents)

5. James E Davis (2 out of 29 patents)

6. Charles Edward Waddles (1 out of 1 patent)

7. Marlin S Walmer (1 out of 1 patent)

8. Rashid K Aidun (1 out of 1 patent)

9. Douglas Cleminshaw (1 out of 2 patents)

10. Alexander Eugene Roux, Iii (1 out of 1 patent)

11. Michael Beamish (1 out of 1 patent)

12. Steven Nowell (1 patent)

13. Nicholas Williams (0 patent)

14. Leon Vandervalk (0 patent)

15. Leon Vandervalk (0 patent)

28 patents: Sort by Forward Citations

1. 12629912 - Apparatus and method for burnishing a replica tape (2026-05-19),

2. 9207174 - Apparatus and method for characterizing a replica tape (2015-12-08),

3. 9188672 - Ultrasonic measuring gauge (2015-11-17),

4. 8994933 - Apparatus and method for characterizing a replica tape (2015-03-31),

5. 8475100 - Wall fastener with knife blade and a string (2013-07-02),

6. RE41342 - Coating thickness gauge (2010-05-17),

7. 6282962 - High resolution ultrasonic thickness gauge (2001-09-04),

8. 6250160 - High resolution ultrasonic thickness gauge (2001-06-26),

9. 6122968 - Delay line for an ultrasonic probe and method of using same (2000-09-26),

10. 6050140 - Adhesion tester (2000-04-18),

11. 6026586 - Powder coating thickness gauge (2000-02-22),

12. 5979241 - Delay line for an ultrasonic probe and method of using same (1999-11-09),

13. 5930744 - Coating thickness gauge (1999-07-27),

14. 5777230 - Delay line for an ultrasonic probe and method of using same (1998-07-07),

15. 5723791 - High resolution ultrasonic coating thickness gauge (1998-03-03),

Defelsko Corporation is a leading manufacturer of coating thickness gauges and inspection instruments. With over 50 years of experience, Defelsko is known for producing high-quality and innovative testing equipment for various industries. Their products are used worldwide by professionals in automotive, aerospace, marine, and other sectors to ensure the quality and durability of coatings. Defelsko's commitment to excellence has earned them a strong reputation in the industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

28 Patents

#1 in Ogdensburg, NY

#724 in New York

#11,988 in US

#23,221 in the World

Ogdensburg, NY, United States of America

Defelsko Corporation

Forward Citations = 290

11 inventors:

Frank J Koch (19 out of 24 patents)

Leon C Vandervalk (14 out of 17 patents)

David J Beamish (6 out of 6 patents)

4. Robert V Stachnik (2 out of 2 patents)

5. James E Davis (2 out of 29 patents)

Please report any incorrect information to [email protected]

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