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For the Inventor, By the Inventor

Houston, TX, United States of America

Brown Fintube Company


USPTO Granted Patents = 3

Trademarks = 3

Forward Citations = 71

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2 inventors (with patents filed for the assignee):

goldMedal John R Powell (2 out of 3 patents)

silverMedal Joseph J Welkey (1 out of 7 patents)


3 patents:

1. 5984001 - Tapered split ring shell closure (1999-11-16),
2. 4456058 - Heat exchanger tube support (1984-06-26),
3. 3948315 - Closure for heat exchanger (1976-04-06),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#1,188 in Houston, TX

#4,679 in Texas

#71,953 in US

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Houston, TX, United States of America

Brown Fintube Company

Forward Citations = 71

2 inventors:

goldMedal John R Powell (2 out of 3 patents)

silverMedal Joseph J Welkey (1 out of 7 patents)

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