For the Inventor, By the Inventor

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Humble, TX, United States of America

Rebar Couplerbox, Inc.

USPTO Granted Patents = 1

Forward Citations = 8

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1 inventor (with patents filed for the assignee):

Helmut Graf (1 out of 2 patents)

1 patent: Sort by Forward Citations

1. 5100738 - Reinforced concrete containing coated steel reinforcing member (1992-03-31),

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USPTO Data Jan 1 1976 - Sep 22 2026

1 Patents

#18 in Humble, TX

#9,232 in Texas

#136,583 in US

Humble, TX, United States of America

Rebar Couplerbox, Inc.

Forward Citations = 8

1 inventor:

Helmut Graf (1 out of 2 patents)

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