ClassID:

86425

C02F5/12 - CPC Classification

Classification description:

Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents; Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen

Sub-classes:
Recent Application in this class:
#1
20260055015
2026-02-26

USE OF POLYCARBOXYLATED-BETA-AMINO ALCOHOLS FOR DISSOLUTION OF INORGANIC SALTS

#2
20260015271
2026-01-15

METHOD FOR IMPROVING CALCIUM CARBONATE SCALE INHIBITOR EFFICIENCY

#3
20250340470
2025-11-06

COMPOSITION USEFUL IN SULFATE SCALE REMOVAL

#4
20250270706
2025-08-28

CORROSION INHIBITOR COMPOSITIONS AND METHODS OF USING THE COMPOSITIONS TO INHIBIT CORROSION

#5
20250099916
2025-03-27

SILICA FOULING INHIBITION METHOD AND SILICA FOULING INHIBITOR FOR REVERSE OSMOSIS MEMBRANE SYSTEM

#6
20250075337
2025-03-06

SATURATED QUATERNARY AMMONIUM COMPOUNDS, GLUTARALDEHYDE, AND TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE FOR CORROSION INHIBITION, CLEANING, AND BIOCIDAL EFFICACY IN HYDROGEN SYSTEMS

#7
20250075126
2025-03-06

DIQUATERNARY COMPOUNDS FOR CORROSION INHIBITION AND METHODS OF USE THEREOF

#8
20230348822
2023-11-02

Anti-limescale composition

#9
20230212480
2023-07-06

Double layer detergent tablet and preparation method thereof

#10
20230193478
2023-06-22

Oleyl propylenediamine-based corrosion inhibitors

#11
20230174402
2023-06-08

Method for controlling accretion of scale

#12
20230061502
2023-03-02

PROTECTIVE COMPOSITIONS FOR USE IN SYSTEMS COMPRISING INDUSTRIAL WATER

#13
20220372307
2022-11-24

Chemical products for surface protection

#14
20220333252
2022-10-20

OLEYL PROPYLENEDIAMINE-BASED CORROSION INHIBITORS

#15
20220228054
2022-07-21

FLUORESCENT NAPHTHALIMIDE POLYMERS AND SOLUTIONS THEREOF FOR SCALE CONTROL IN AQUEOUS SYSTEMS

#16
20220227648
2022-07-21

METHOD OF CONTROLLING CARBONATE SCALE IN AQUEOUS SYSTEMS

#17
20220213377
2022-07-07

Scale deposition inhibiting scavenger compositions and their use

#18
20220162102
2022-05-26

Molecules having one hydrophobic group and two identical hydrophilic ionic groups and compositions thereof and methods of preparation thereof

#19
20220154349
2022-05-19

Compositions comprising multiple charged cationic compounds derived from polyamines for corrosion inhibition in a water system

#20
20220119293
2022-04-21

METHOD OF CONTROLLING SCALE IN AQUEOUS SYSTEMS

#21
20210331942
2021-10-28

Methods for online control of a chemical treatment solution using scale saturation indices

#22
20210253461
2021-08-19

Method of controlling scale in aqueous systems

#23
20210230034
2021-07-29

Use of di-ionic compounds as corrosion inhibitors in a water system

#24
20210221724
2021-07-22

Acid grafted EO-PO copolymers as silica scale inhibitors

#25
20210221723
2021-07-22

Inhibition of silica scale using a chelating agent blended with acid and alkylene oxide derived polymer dispersants

#26
20210221715
2021-07-22

Metal-chelating compositions and their use in methods of removing or inhibiting barium scale

#27
20210078885
2021-03-18

Method for monitoring fluorescent polymer antiscalants in industrial water systems

#28
20210061754
2021-03-04

Stabilization of compositions comprising quaternary trialkylalkanolamine hydroxide

#29
20210032482
2021-02-04

Chemical products for surface protection

#30
20210032141
2021-02-04

Silica scale inhibitors

#31
20200392407
2020-12-17

Corrosion inhibitor for soft water circulation heating and cooling system and preparation method of corrosion inhibitor

#32
20200362467
2020-11-19

1,2,4-triazolo[1,5-a] pyrimidine derivative as copper corrosion inhibitor

#33
20200332423
2020-10-22

Use of multiple charged cationic compounds derived from polyamines and compositions thereof for corrosion inhibition in a water system

#34
20200292444
2020-09-17

Testing method for residual organic compounds in a liquid sample

#35
20200255719
2020-08-13

Downhole fluid for removing scales and methods thereof

#36
20200239344
2020-07-30

Composition and method for controlling scale in industrial water systems

#37
20200165513
2020-05-28

FLUORESCENT POLYMERS FOR MONITORING ANTISCALANT CONCENTRATIONS IN INDUSTRIAL WATER SYSTEMS

#38
20200080206
2020-03-12

Oleyl propylenediamine-based corrosion inhibitors

#39
20200079673
2020-03-12

Methods and systems for calcite removal using polysuccinimide

#40
20190308897
2019-10-10

Composition and method for inhibiting corrosion

#41
20190203118
2019-07-04

Benzotriazole derivatives as corrosion inhibitors

#42
20190169501
2019-06-06

AQUEOUS OIL-IN-WATER EMULSIONS OF ORGANIC AMINES

#43
20190084856
2019-03-21

COMPOSITION AND METHOD OF SCALE CONTROL IN REGULATED EVAPORATIVE SYSTEMS

#44
20190062267
2019-02-28

Molecules having one hydrophobic group and two identical hydrophilic ionic groups and compositions thereof and methods of preparation thereof

#45
20190062187
2019-02-28

Use of di-ionic compounds as corrosion inhibitors in a water system

#46
20190062184
2019-02-28

Elemental sulfur dispersant to control fouling in water systems

#47
20180327294
2018-11-15

Iron sulfide scale control agent for geothermal wells

#48
20180273828
2018-09-27

Scale deposition inhibiting scavenger compositions and their use

#49
20180264005
2018-09-20

Methods of treating erectile dysfunction

#50
20180244553
2018-08-30

Antiscale dispersant composition and use thereof

#51
20180195031
2018-07-12

Process for forming a descaling composition

#52
20180179062
2018-06-28

Primary amine-containing polymers useful as scale inhibitors

#53
20180155226
2018-06-07

Multiple uses of amine salts for industrial water treatment

#54
20180105732
2018-04-19

Composition and method for inhibition of sulfide scales

#55
20170306506
2017-10-26

Composition and method for inhibiting corrosion and scale

#56
20170297938
2017-10-19

Composition and method for inhibiting corrosion

#57
20170292058
2017-10-12

Process for inhibition of sulphide scales

#58
20170260076
2017-09-14

Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems

#59
20170218169
2017-08-03

Rheology modifying agents for slurries

#60
20170197855
2017-07-13

Inhibition of silica scale using amine-terminated polyoxyalkylene

#61
20170190603
2017-07-06

Inhibtion of silica scale using hydrophobically-modified alkylene oxide urethane copolymer

#62
20170183248
2017-06-29

Method to disperse byproducts formed in dilution steam systems

#63
20170145222
2017-05-25

Chemical products for surface protection

#64
20170107126
2017-04-20

DISPERSANT FOR WATER TREATMENT AND WATER TREATMENT METHOD

#65
20170050861
2017-02-23

Reducing aluminosilicate scale in the Bayer process

#66
20170037295
2017-02-09

SYNERGISTIC CHEMISTRY TO PREVENT SILICATE SCALING

#67
20170029305
2017-02-02

SCALE INHIBITING POLYMER COMPOSITIONS, MIXTURES, AND METHODS OF USING THE SAME

#68
20160369155
2016-12-22

METHODS OF INHIBITING SALT PRECIPITATION AND CORROSION

#69
20160348253
2016-12-01

Purine-based corrosion inhibitors

#70
20160326036
2016-11-10

Terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning and its preparation method

#71
20160229725
2016-08-11

Modified amines useful as scale inhibitors in wet process phosphoric acid production

#72
20160221850
2016-08-04

Hydrophobically modified polyamine scale inhibitors

#73
20160176995
2016-06-23

Scale inhibitor compositions and methods of using

#74
20160101115
2016-04-14

Methods of treating erectile dysfunction

#75
20160096908
2016-04-07

Low molecular weight graft polymer for scale inhibitor

#76
20160083277
2016-03-24

Hydrophobically modified polyamine scale inhibitors

#77
20150274561
2015-10-01

METHODS OF REDUCING SCALANT FORMATION

#78
20150251939
2015-09-10

COMPOSITION AND METHOD OF SCALE CONTROL IN REGULATED EVAPORATIVE SYSTEMS

#79
20150225241
2015-08-13

Primary amine-containing polymers useful as scale inhibitors

#80
20150184069
2015-07-02

Tagged scale inhibiting polymer compositions and methods of inhibiting scale formation

#81
20150183903
2015-07-02

Polyzwitterionic acid antiscalant compound

#82
20150175844
2015-06-25

Method of reducing scale in the bayer process

#83
20150175460
2015-06-25

Tagged scale inhibitor compositions and methods of inhibiting scale

#84
20150144569
2015-05-28

Poly(zwitterion-alt-sulfur dioxide) copolymer

#85
20150144162
2015-05-28

Synthesis and antiscalant behavior of a novel polyzwitterionic acid

#86
20150090640
2015-04-02

STEAM GENERATOR ADDITIVES TO MINIMIZE FOULING AND CORROSION IN CRUDE TOWERS

#87
20140338915
2014-11-20

Particles containing one or more controlled release cross-linked active agents

#88
20140303337
2014-10-09

Polymers having chelating functionality

#89
20140263055
2014-09-18

Ion sequestration for scale prevention in high-recovery desalination systems

#90
20140183140
2014-07-03

Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems

#91
20140131283
2014-05-15

Multiple uses of amine salts for industrial water treatment

#92
20140083949
2014-03-27

Scale inhibition method and geothermal power generating device

#93
20140066351
2014-03-06

Stabilized pipe scaling remover and inhibitor compound

#94
20130315812
2013-11-28

Process for removing hydrazine from hydroxlyamine solutions

#95
20130264289
2013-10-10

Method of scale inhibition

#96
20130234063
2013-09-12

Tagged scale inhibitor compositions and methods of inhibiting scale

#97
20120279522
2012-11-08

Method and composition for removing deposits

#98
20120260938
2012-10-18

Method of dissolving and/or inhibiting the deposition of scale on a surface of a system

#99
20120152852
2012-06-21

PROCESSES FOR REMOVING HYDRAZINE FROM HYDROXYLAMINE SOLUTIONS

#100
20120148462
2012-06-14

Reducing aluminosilicate scale in the bayer process

#101
20120114523
2012-05-10

Polymeric corrosion inhibitors

#102
20120097392
2012-04-26

Treatment fluids containing biodegradable chelating agents and methods for use thereof

#103
20120080641
2012-04-05

Formulations for use in sulfur scale control in industrial water systems

#104
20120032093
2012-02-09

TAGGED SCALE INHIBITOR COMPOSITIONS AND METHODS OF INHIBITING SCALE

#105
20120006671
2012-01-12

CONTROL OF SCALE FORMATION IN PRODUCED WATER EVAPORATORS

#106
20110281784
2011-11-17

Formulations with unexpected cleaning performance incorporating a biodegradable chelant

#107
20110253628
2011-10-20

Method of inhibiting scale formation and deposition in desalination systems

#108
20110220581
2011-09-15

Hydrophobically modified polyamine scale inhibitors

#109
20110155664
2011-06-30

Method for the removing and reducing scaling

#110
20110124533
2011-05-26

Method of scale inhibition

#111
20110114564
2011-05-19

Preventing Silica And Silicate Scale With Inhibitors In Industrial Water Systems

#112
20110079243
2011-04-07

SCALE CONDITIONING AGENTS AND TREATMENT METHOD

#113
20100294984
2010-11-25

METHODS OF INHIBITING SCALE OF SILICA

#114
20100256317
2010-10-07

Compositions for preventing or reducing aluminosilicate scale in industrial processes

#115
20100186961
2010-07-29

α-Amino acid phosphonic acid compounds, method of preparation of use thereof

#116
20100174110
2010-07-08

Process for the manufacture of alkylamino alkylene phosphonic acids

#117
20100173071
2010-07-08

Cooling water corrosion inhibition method

#118
20100163789
2010-07-01

CALCIUM CARBONATE SCALE INHIBITOR AND REMOVER FOR FRESHWATER AND SEAWATER FLUSHED SANITARY WASTE SYSTEMS

#119
20100163494
2010-07-01

Preparation of environmentally acceptable scale inhibitors

#120
20100145066
2010-06-10

Phosphonate compounds

#121
20100120995
2010-05-13

Silane substituted polyalkylene oxide reagents and methods of using for preventing or reducing aluminosilicate scale in industrial processes

#122
20100116750
2010-05-13

Silane substituted polyalkylene oxide reagents and methods of using for preventing or reducin aluminosilicate scale in industrial processes

#123
20100063316
2010-03-11

REACTIVE PHOSPHONATES

#124
20100051559
2010-03-04

Method for inhibiting scale formation and deposition in membrane systems via the use of an AA-AMPS copolymer

#125
20090101587
2009-04-23

METHOD OF INHIBITING SCALE FORMATION AND DEPOSITION IN DESALINATION SYSTEMS

#126
20090099328
2009-04-16

Hydrophobically modified polyamine scale inhibitors

#127
20090099058
2009-04-16

Formulations with unexpected cleaning performance incorporating a biodegradable chelant

#128
20090082535
2009-03-26

(METH)ACRYLIC ACID COPOLYMER, METHOD FOR PROCUCING THE SAME, AND APPLICATION THEREOF

#129
20090048142
2009-02-19

Biodegradability of antiscalant formulations

#130
20090025896
2009-01-29

Control of the thickening of silicate-containing aqueous systems

#131
20090018295
2009-01-15

POLYMERS FOR PREVENTING OR REDUCING ALUMINOSILICATE SCALE IN A BAYER PROCESS

#132
20080272342
2008-11-06

Chemical composition useful as corrosion inhibitor

#133
20080264870
2008-10-30

Cooling water corrosion inhibition method

#134
20080179564
2008-07-31

Composition for preventing or reducing aluminosilicate scale in industrial processes

#135
20080169243
2008-07-17

METHOD OF INHIBITING SCALE FORMATION AND DEPOSITION IN DESALINATION SYSTEMS

#136
20080161222
2008-07-03

Use of polyaminomethylenephosphonates as dispersing agents

#137
20080111103
2008-05-15

Silane substituted polyethylene oxide reagents and method of using for preventing or reducing aluminosilicate scale in industrial processes

#138
20080020948
2008-01-24

Sulfonated graft copolymers

#139
20070267193
2007-11-22

Stimulating oilfields using different scale-inhibitors

#140
20070267046
2007-11-22

Cleaning Process For Removing Magnetite-Containing Deposits From A Pressure Vessel Of A Power Station

#141
20070227980
2007-10-04

Water treatment method

#142
20070227978
2007-10-04

Method of supply amount management of water treating agent

#143
20070151927
2007-07-05

Metal oxides dispersant composition

#144
20070125987
2007-06-07

Tagged scale inhibiting polymers, compositions comprised thereof and preventing or controlling scale formation therewith

#145
20070125978
2007-06-07

Method for removing heavy metals from and dissolving calcium and/or magnesium scales in water or aqueous system

#146
20070105744
2007-05-10

Water-softening product

#147
20070093609
2007-04-26

Acrylic-acid-based homopolymers comprising taurine modified for the treatment of water

#148
20070055022
2007-03-08

Polymer for water treatment

#149
20060272198
2006-12-07

Method for improving flux in a membrane bioreactor

#150
20060225605
2006-10-12

Aqueous coating compositions and process for treating metal plated substrates

#151
20060157420
2006-07-20

Automated process for inhibiting corrosion in an inactive boiler containing an aqueous system

#152
20060131241
2006-06-22

Phosphonamide and phosphonamide blend compositions to treat water

#153
20060046953
2006-03-02

Process for inhibiting scale on metal surfaces

#154
20060043340
2006-03-02

Metal corrosion inhibitor and hydrogen chloride formation inhibitor in a crude oil atmospheric distillation unit

#155
20050274926
2005-12-15

Method and compositions for preventing or reducing aluminosilicate scale in alkaline industrial processes

#156
20050247269
2005-11-10

Scale conditioning agents and treatment method

#157
20050227878
2005-10-13

One-bath particle-free chemical cleaning

#158
20050176897
2005-08-11

Polyalkylenimine-derived polymer and its production process and uses

#159
20050126727
2005-06-16

Method for inhibiting calcium salt scale

#160
20050121650
2005-06-09

Steam condensate corrosion inhibitor compositions and methods

#161
20050104031
2005-05-19

Phosphonamide and phosphonamide blend compositions and method to treat water

#162
20050040363
2005-02-24

Coolant treatment formulation

#163
20050035328
2005-02-17

Modified amine for boiler water treatment

#164
20050025661
2005-02-03

Inhibition of corrosion in fluid systems

#165
20050010008
2005-01-13

Polymers for preventing or reducing aluminosilicate scale in a bayer process

#166
17871872
2023-02-21

Modified hydroxyethyl cellulose scale inhibitor for inhibiting silica scale and preparation method thereof

#167
16501595
2020-03-03

De-scaling: the way to economical desalination