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For the Inventor, By the Inventor

Baltimore, MD, United States of America

Advanced Geotech Systems LLC


USPTO Granted Patents = 2

% Expired Patents = 100.0

Forward Citations = 41

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3 inventors (with patents filed for the assignee):

goldMedal Peter J Ianniello (2 out of 9 patents)

silverMedal Aigen Zhao (2 out of 4 patents)

bronzeMedal Gary L Shaffer (2 out of 3 patents)


2 patents:

1. 7309188 - Drainable base course for a landfill and method of forming the same (2007-12-18),
2. 7131788 - High-flow void-maintaining membrane laminates, grids and methods (2006-11-07),
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USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#199 in Baltimore, MD

#1,421 in Maryland

#94,730 in US

Baltimore, MD (US)
Baltimore, MD, United States of America

Advanced Geotech Systems LLC

Forward Citations = 41

3 inventors:

goldMedal Peter J Ianniello (2 out of 9 patents)

silverMedal Aigen Zhao (2 out of 4 patents)

bronzeMedal Gary L Shaffer (2 out of 3 patents)

Please report any incorrect information to [email protected]
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