Assignee
CUNO INC
US110 patents
Top patents by PatentIndex Score
US4948505AAug 14, 1990
Quick-change filter cartridge and head therefor
CUNO INC157 citations99
US4806240AFeb 21, 1989
Adapter and cartridge assembly
CUNO INC166 citations99
US6458269B1Oct 1, 2002
Keyed filter assembly
CUNO INC246 citations98
US6325929B1Dec 4, 2001
Replacement filter cartridge for water filtering system
CUNO INC103 citations98
US4801375AJan 31, 1989
Water vending system
CUNO INC155 citations98
US6949189B2Sep 27, 2005
Keyed filter assembly
CUNO INC96 citations97
US6391200B2May 21, 2002
Filter and method of filtering a fluid
CUNO INC92 citations97
US5928588AJul 27, 1999
Porous filter structure and process for the manufacture thereof
CUNO INC126 citations97
US4915831AApr 10, 1990
Filter assembly featuring displaceable filter head plunger for locking into filter cartridge detent
CUNO INC289 citations97
US4888115ADec 19, 1989
Cross-flow filtration
CUNO INC135 citations97
US4877521AOct 31, 1989
Quick-change filter cartridge and head therefor
CUNO INC184 citations97
US4724207AFeb 9, 1988
Modified siliceous chromatographic supports
CUNO INC197 citations97
US4707265ANov 17, 1987
Reinforced microporous membrane
CUNO INC175 citations97
US6513666B2Feb 4, 2003
Reinforced, three zone microporous membrane
CUNO INC81 citations96
US6264044B1Jul 24, 2001
Reinforced, three zone microporous membrane
CUNO INC115 citations96
US6139739AOct 31, 2000
Composite filter element
CUNO INC60 citations96
US6056529AMay 2, 2000
Systems for producing a plurality of different microporous phase inversion membrane each having any one of a plurality of different pore sizes from a single master dope batch
CUNO INC104 citations96
US5919360AJul 6, 1999
Additive dispensing apparatus
CUNO INC120 citations96
US5882517AMar 16, 1999
Porous structures
CUNO INC106 citations96
US5151180ASep 29, 1992
Radial and axial flow stage filter device
CUNO INC82 citations96
US5126043AJun 30, 1992
Radial and axial flow filter device
CUNO INC59 citations96
US5085784AFeb 4, 1992
Use of cationic charge modified filter media
CUNO INC69 citations96
US4981591AJan 1, 1991
Cationic charge modified filter media
CUNO INC70 citations96
US4929354AMay 29, 1990
Filter element having microporous membrane
CUNO INC80 citations96
US4859340AAug 22, 1989
Filter sheet
CUNO INC87 citations96
US6776940B2Aug 17, 2004
Process for making a three-zone microporous membrane
CUNO INC75 citations95
US6464084B2Oct 15, 2002
Edge seal for filter cartridge
CUNO INC54 citations95
US6267916B1Jul 31, 2001
Process of making microporous phase inversion membranes
CUNO INC63 citations95
US5919362AJul 6, 1999
Expandable encapsulated filter cartridge assembly
CUNO INC74 citations95
US5399264AMar 21, 1995
Compressible differential pressure energized seals for filter elements and the like
CUNO INC72 citations95
US5059654AOct 22, 1991
Affinity matrices of modified polysaccharide supports
CUNO INC489 citations95
US5045210ASep 3, 1991
Heavy metal removal process
CUNO INC56 citations95
US4915839AApr 10, 1990
Process for surface modifying a microporous membrane
CUNO INC103 citations95
US4791063ADec 13, 1988
Polyionene transformed modified polysaccharide supports
CUNO INC58 citations95
US4711793ADec 8, 1987
Process for charge modifying a microphorous membrane
CUNO INC59 citations95
US4708803ANov 24, 1987
Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane
CUNO INC58 citations95
US4673504AJun 16, 1987
Charge modified microporous membrane
CUNO INC91 citations95
US6413070B1Jul 2, 2002
System for manufacturing reinforced three-zone microporous membrane
CUNO INC119 citations94
US6090441AJul 18, 2000
Process of making reinforced, three zone microporous membrane
CUNO INC66 citations94
US5019601AMay 28, 1991
Elastomeric composition containing therapeutic agents and articles manufactured therefrom
CUNO INC113 citations94
US4915886AApr 10, 1990
Method of manufacturing nylon microporous hollow fiber membrane
CUNO INC58 citations94
US4743373AMay 10, 1988
Chromatography column
CUNO INC75 citations94
US4675104AJun 23, 1987
Chromatography column
CUNO INC55 citations94
US6315130B1Nov 13, 2001
Pleated filter element
CUNO INC106 citations93
US5965019AOct 12, 1999
Encapsulated lenticular filter cartridge
CUNO INC54 citations93
US5458782AOct 17, 1995
Hydrolytically stable nylon membrane
CUNO INC69 citations93
US4906371AMar 6, 1990
Filter element having microporous membrane
CUNO INC35 citations93
US4645567AFeb 24, 1987
Filter media and method of making same
CUNO INC50 citations93
US6953526B1Oct 11, 2005
Filter assembly
CUNO INC37 citations92
US6857670B2Feb 22, 2005
Plastic tube joint
CUNO INC19 citations92
Showing the top 50 of 110 patents by PatentIndex Score.