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HYDRANAUTICS
US24 patents
Top patents by PatentIndex Score
US4872984AOct 10, 1989
Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparing the same
HYDRANAUTICS151 citations97
US7481917B2Jan 27, 2009
Filtration devices with embedded radio frequency identification (RFID) tags
HYDRANAUTICS57 citations96
US5246587ASep 21, 1993
Interfacially synthesized reverse osmosis membranes and processes for preparing the same
HYDRANAUTICS56 citations94
US4948507AAug 14, 1990
Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparing the same
HYDRANAUTICS112 citations94
US7442309B2Oct 28, 2008
Methods for reducing boron concentration in high salinity liquid
HYDRANAUTICS23 citations92
US7736495B2Jun 15, 2010
Filtration devices with embedded radio frequency identification (RFID) tags
HYDRANAUTICS28 citations91
US6464873B1Oct 15, 2002
Interfacially polymerized, bipiperidine-polyamide membranes for reverse osmosis and/or nanofiltration and process for making the same
HYDRANAUTICS35 citations91
US5922203AJul 13, 1999
Amine monomers and their use in preparing interfacially synthesized membranes for reverse osmosis and nanofiltration
HYDRANAUTICS43 citations91
US7378024B2May 27, 2008
Methods for improving filtration performance of hollow fiber membranes
HYDRANAUTICS63 citations90
US5254261AOct 19, 1993
Interfacially synthesized reverse osmosis membranes and processes for preparing the same
HYDRANAUTICS84 citations90
US4855058AAug 8, 1989
High recovery spiral wound membrane element
HYDRANAUTICS145 citations90
US7584061B2Sep 1, 2009
Device for measuring permeate flow and permeate conductivity of individual reverse osmosis membrane elements
HYDRANAUTICS19 citations87
US4235723ANov 25, 1980
Reverse osmosis membrane module
HYDRANAUTICS91 citations86
US4990252AFeb 5, 1991
Stable membranes from sulfonated polyarylethers
HYDRANAUTICS48 citations85
US6183639B1Feb 6, 2001
Hollow fiber filter module and method of manufacturing same
HYDRANAUTICS39 citations83
US8357300B2Jan 22, 2013
Methods and materials for selective boron adsorption from aqueous solution
HYDRANAUTICS11 citations81
US7531042B2May 12, 2009
Methods for cleaning and maintaining membrane surface during filtration
HYDRANAUTICS42 citations81
US12251665B2Mar 18, 2025
Modular manifold for filtration modules
HYDRANAUTICS2 citations74
US7001518B1Feb 21, 2006
Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof
HYDRANAUTICS13 citations70
US4007915AFeb 15, 1977
Jacking apparatus
HYDRANAUTICS16 citations69
US3994475ANov 30, 1976
Rack type jacking apparatus
HYDRANAUTICS10 citations69
US6413424B1Jul 2, 2002
Sanitary style filter element
HYDRANAUTICS13 citations66
US3978676ASep 7, 1976
Ship lifting apparatus
HYDRANAUTICS16 citations63
US9731230B2Aug 15, 2017
Aeration diffuser for pressurized liquid treatment module and method of operating same
HYDRANAUTICS2 citations62