Solon, OH, United States of America

Hdt Engineering Services, Inc.


USPTO Granted Patents = 1

Trademarks = 2

Forward Citations = 21

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3 inventors (with patents filed for the assignee):

goldMedal Ezra Johnson (1 out of 6 patents)

silverMedal Thomas W Van Doren (1 out of 8 patents)

bronzeMedal W Travis Lontz (1 out of 3 patents)


1 patent:

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USPTO Data Jan 1 1976 - Dec 2 2025

1 Patents

#75 in Solon, OH

#5,179 in Ohio

#133,826 in US

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Solon, OH, United States of America
Forward Citations = 21

3 inventors:

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