Port Washington, WI, United States of America

Kleen Test Products Corporation


USPTO Granted Patents = 3

Trademarks = 17

Forward Citations = 39

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9 inventors (with patents filed for the assignee):

goldMedal Jeffrey G Maxon (2 out of 2 patents)

silverMedal Douglas J Arnold (2 out of 2 patents)

bronzeMedal William T Ahlborn (1 out of 1 patent)

4 Mark A Oman (1 out of 1 patent)

5 Linnea L Esberg (1 out of 1 patent)

6 Keith S Everson (1 out of 11 patents)

7 Kelly R Effert (1 out of 1 patent)

8 Greg W Gierach (1 out of 1 patent)

9 Richard J Haertle (1 out of 1 patent)


3 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

3 Patents

#9 in Port Washington, WI

#1,463 in Wisconsin

#71,967 in US

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Port Washington, WI, United States of America
Forward Citations = 39

9 inventors:

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