Environmental Technology Enterprises, L.L.C.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0272,539 Point-of-use water purification method and apparatusABANMay 10, 07Nov 29, 07[B01D]
7,217,343 Point of use water purification method and apparatusExpiredSep 28, 04May 15, 07[B01D]
6,830,661 Point of use water purification method and apparatusExpiredMar 04, 02Dec 14, 04[C02F, B01D]
6,290,819 Distillation apparatusExpiredMar 19, 99Sep 18, 01[C02F, B01D]

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