VA TECH WABAG GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5447633 Activated sludge process for sewage purificationFeb 03, 94Sep 05, 95[C02F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0135,497 Membrane Filter System Comprising Parallel Cross-Flow Filter ModulesAbandonedDec 01, 04Jun 12, 08[C02F, B01D]
2008/0121,593 Filter System for Water and Waste WaterAbandonedDec 01, 05May 29, 08[B01D]
5618430 Process for performing reactionsExpiredFeb 23, 95Apr 08, 97[B01J, C02F]

Top Inventors for This Owner

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