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Perry Hall, MD, US
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last 30 patents
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Patent Grant
Filter integrity tester
Patent number
7,592,178
Issue date
Sep 22, 2009
Hunter Menufacturing Co.
Yuqing Ding
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Filter service life estimator
Patent number
7,537,648
Issue date
May 26, 2009
The United States of America as represented by the Secretary of the Army
Christopher J. Karwacki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
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Patent Application
Filter integrity tester
Publication number
20060188994
Publication date
Aug 24, 2006
Hunter Manufacturing Co.
Yuqing Ding
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL