For the Inventor, By the Inventor

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Chicago, IL, United States of America

Great Barrier Technologies, Inc.

USPTO Granted Patents = 2

Forward Citations = 15

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1 inventor (with patents filed for the assignee):

Robert H Black (2 out of 9 patents)

2 patents: Sort by Forward Citations

1. 6652643 - Composition and process for improving the resistance to water penetration of cementitious products and cementitious products made therewith (2003-11-25),

2. 6315825 - Composition and process for improving the resistance to water penetration of cementitious products and cementitious products made therewith (2001-11-13),

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USPTO Data Jan 1 1976 - Jan 13 2026

2 Patents

#1,002 in Chicago, IL

#4,310 in Illinois

#92,770 in US

Chicago, IL, United States of America

Great Barrier Technologies, Inc.

Forward Citations = 15

1 inventor:

Robert H Black (2 out of 9 patents)

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