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For the Inventor, By the Inventor

Oak Brook, IL, United States of America

Great Industries, Inc.


USPTO Granted Patents = 2

% Expired Patents = 100.0

Forward Citations = 4

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1 inventor (with patents filed for the assignee):

goldMedal John JianShi Wang (2 out of 72 patents)


2 patents:

1. 9422780 - Drill members for mine roofs (2016-08-23),
2. 9109408 - Drill members for mine roofs (2015-08-18),
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USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#50 in Oak Brook, IL

#4,383 in Illinois

#94,730 in US

Oak Brook, IL (US)
Oak Brook, IL, United States of America

Great Industries, Inc.

Forward Citations = 4

1 inventor:

goldMedal John JianShi Wang (2 out of 72 patents)

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