Warren, MI, United States of America

Crh North America, Inc.


USPTO Granted Patents = 3

Forward Citations = 31

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8 inventors (with patents filed for the assignee):

goldMedal Mircea Napau (3 out of 19 patents)

silverMedal Ioan Napau (3 out of 17 patents)

bronzeMedal Robert James Bachula (3 out of 3 patents)

4 Dean Lenane (1 out of 7 patents)

5 Tobias Keller (1 out of 2 patents)

6 Mike Chupa (1 out of 1 patent)

7 Mike Chapa (1 out of 1 patent)

8 Patrick Frank Timmerman (1 out of 1 patent)


3 patents:

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#53 in Warren, MI

#2,442 in Michigan

#71,953 in US

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Warren, MI, United States of America
Forward Citations = 31

8 inventors:

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