Assignee
FILMTEC CORP
US·10 granted patents·1,063 citations·filing 1979–2002
Top patents by PatentIndex Score
10 records- 0198US4277344AInterfacially synthesized reverse osmosis membraneFILMTEC CORP·Filed 1979·Granted Jul 7, 1981·582 cites·21 claims
- 0296US6881336B2Spiral wound element with improved feed spaceFILMTEC CORP·Filed 2002·Granted Apr 19, 2005·121 cites·10 claims
- 0393US4859384ANovel polyamide reverse osmosis membranesFILMTEC CORP·Filed 1988·Granted Aug 22, 1989·89 cites·18 claims
- 0490US4812270ANovel water softening membranesFILMTEC CORP·Filed 1988·Granted Mar 14, 1989·72 cites·10 claims
- 0589US4964998AUse of treated composite polyamide membranes to separate concentrated soluteFILMTEC CORP·Filed 1989·Granted Oct 23, 1990·66 cites·18 claims
- 0685US4960517ATreatment of composite polyamide membranes via substitution with amine reactive reagentsFILMTEC CORP·Filed 1989·Granted Oct 2, 1990·53 cites·22 claims
- 0780US4834886AProcess for making alkali resistant hyperfiltration membrane and resulting productFILMTEC CORP·Filed 1987·Granted May 30, 1989·16 cites·21 claims
- 0869US4895661AAlkali resistant hyperfiltration membraneFILMTEC CORP·Filed 1989·Granted Jan 23, 1990·29 cites·7 claims
- 0965US4960518ATreatment of composite polyamide membranes with compatible oxidantsFILMTEC CORP·Filed 1989·Granted Oct 2, 1990·24 cites·22 claims
- 1059US7156997B2Package assembly for piperazine-based membranesFILMTEC CORP·Filed 2001·Granted Jan 2, 2007·11 cites·20 claims
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