Patents-Review.com
ClassID:

30760 ⎘

B01D2311/268 - CPC Classification

Classification description:

Details relating to membrane separation process operations and control; Further operations combined with membrane separation processes Water softening

Recent Application in this class:
#1
20240217855
2024-07-04

SELF-MEDIATED SALTLESS WHOLE HOME WATER TREATMENT SYSTEMS AND METHODS

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20240181392
2024-06-06

IMPROVED REVERSE OSMOSIS OR NANOFILTRATION PROCESS FOR CLEANING WATER

 #3
20240165562
2024-05-23

REVERSE OSMOSIS OR NANOFILTRATION PROCESS FOR CLEANING WATER

 #4
20240075428
2024-03-07

Reverse osmosis or nanofiltration process for cleaning water

 #5
20230241555
2023-08-03

Wastewater treatment method and wastewater treatment apparatus

 #6
20210323852
2021-10-21

Methods and Systems for Treating Phosphogypsum-Containing Water

 #7
20210299612
2021-09-30

Reverse osmosis or nanofiltration process for cleaning water

 #8
20210094855
2021-04-01

Methods of separating and isolating water and other desired constituents from oilfield produced brines

 #9
20200024173
2020-01-23

Process and apparatus for enriching silicate in drinking water

 #10
20190314771
2019-10-17

HIGH SELECTIVITY POLY(IMIDE-URETHANE) MEMBRANES FOR GAS SEPARATIONS

 #11
20190270660
2019-09-05

Methods of separating and isolating water and other desired constituents from oilfield produced brines for reuse

 #12
20190039922
2019-02-07

Process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate

 #13
20180333678
2018-11-22

Reverse osmosis or nanofiltration process for cleaning water

 #14
20180236404
2018-08-23

Water treatment and delivery system for dialysis units

 #15
20180028978
2018-02-01

Methods and systems for treating high temperature produced water

 #16
20170283280
2017-10-05

Method for the desalination of supersaturated hot water

 #17
20170210656
2017-07-27

Water treatment systems and methods

 #18
20170151507
2017-06-01

COMBINATION MULTI-EFFECT DISTILLATION AND MULTI-STAGE FLASH EVAPORATION SYSTEM

 #19
20160009582
2016-01-14

Methods and systems for treating produced water

 #20
20150048027
2015-02-19

Method for high efficiency reverse osmosis operation

 #21
20140069852
2014-03-13

Water softener using nanofiltration to reclaim a portion of the regenerating solution

 #22
20140042029
2014-02-13

System for rinsing electrodialysis electrodes

 #23
20130062282
2013-03-14

METHOD FOR HIGH EFFICIENCY REVERSE OSMOSIS OPERATION

 #24
20130032535
2013-02-07

Enhanced high water recovery membrane process

 #25
20110266224
2011-11-03

Enhanced high water recovery membrane process

 #26
20110163031
2011-07-07

Method and apparatus for recovery of water containing silica

 #27
20110094965
2011-04-28

Enhanced high water recovery membrane process

 #28
20080290033
2008-11-27

METHOD AND APPARATUS FOR RECOVERY OF WATER CONTAINING SILICA

 #29
20070215546
2007-09-20

Method of integrating water treatment assemblies

 #30
20060231491
2006-10-19

High purity water produced by reverse osmosis

 #31
20050011832
2005-01-20

Water desalination process using ion selective membranes