Madisonville, KY, United States of America

Charah Enviromental, Inc.


USPTO Granted Patents = 1

Forward Citations = 20

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3 inventors (with patents filed for the assignee):

goldMedal Charles E Price (1 out of 3 patents)

silverMedal William Lee Barnwell (1 out of 1 patent)

bronzeMedal John G Groppo, Jr (1 out of 4 patents)


1 patent:

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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#1 in Madisonville, KY

#792 in Kentucky

#133,781 in US

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Madisonville, KY, United States of America
Forward Citations = 20

3 inventors:

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