ClassID:

120635 āŽ˜

C23F11/141 - CPC Classification

Classification description:

Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors; Nitrogen-containing compounds Amines; Quaternary ammonium compounds

Sub-classes:
Recent Application in this class:
#1
20260015738
2026-01-15

CORROSION INHIBITOR COMPOSITIONS AND METHODS OF INHIBITING CORROSION

#2
20260002266
2026-01-01

PRODUCTION METHOD FOR ETCHING LIQUID COMPOSITION

#3
20250297371
2025-09-25

COMPOSITIONS AND METHODS OF TREATING METAL SURFACES IN SURFACE PREPARATION PROCESSES

#4
20250257470
2025-08-14

DEVELOPMENT OF ADDITIVE FOR MITIGATING AMMONIUM CHLORIDE CORROSION ISSUES IN HYDROTREATER

#5
20250207013
2025-06-26

TREATMENT COMPOSITIONS INCLUDING ALUMINA PARTICULATE

#6
20250179648
2025-06-05

UNDER-DEPOSIT CORROSION INHIBITORS AND METHODS OF USING THE SAME

#7
20250109343
2025-04-03

CORROSION INHIBITOR

#8
20250034447
2025-01-30

SYNERGISTIC CORROSION INHIBITOR BLENDS

#9
20250002425
2025-01-02

CORROSION INHIBITORS FOR NITRAPYRIN CONTAINING AGRICULTURAL FORMULATIONS

#10
20240401206
2024-12-05

METHOD FOR INHIBITING CORROSION OF METAL ARTICLE

#11
20240376607
2024-11-14

METHOD AND COMPOSITION FOR TREATING DILUTION STEAM GENERATOR SYSTEMS

#12
20240352300
2024-10-24

NOVEL COOLANT WITH LOW ELECTRICAL CONDUCTIVITY

#13
20230295486
2023-09-21

Synergistic corrosion inhibitor blends

#14
20230193478
2023-06-22

Oleyl propylenediamine-based corrosion inhibitors

#15
20230167558
2023-06-01

Scale control in production fluids

#16
20230096673
2023-03-30

SUCCINIC ANHYDRIDE-DERIVED POLYESTERS AS CORROSION INHIBITORS

#17
20230076540
2023-03-09

Polyamine-polyesters as corrosion inhibition

#18
20230072473
2023-03-09

CORROSION INHIBITOR FOR A CENTRAL HEATING SYSTEM

#19
20230042309
2023-02-09

HYDROCARBON FUNCTIONALIZED POLYAMINES FOR CORROSION INHIBITION

#20
20220364242
2022-11-17

Method for Reducing or Preventing Corrosion or Fouling Caused by Acidic Compounds

#21
20220363977
2022-11-17

Corrosion-inhibiting surfactants

#22
20220333252
2022-10-20

OLEYL PROPYLENEDIAMINE-BASED CORROSION INHIBITORS

#23
20220227708
2022-07-21

METHODS FOR FORMING PEROXYFORMIC ACID AND USES THEREOF

#24
20220162102
2022-05-26

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

#25
20220154349
2022-05-19

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

#26
20220002175
2022-01-06

USE OF CATIONIC SUGAR-BASED COMPOUNDS AS CORROSION INHIBITORS IN A WATER SYSTEM

#27
20210317359
2021-10-14

Corrosion inhibitor compositions and methods of use in acid stimulation operations

#28
20210253938
2021-08-19

Oil and gas field corrosion inhibitor compositions

#29
20210230034
2021-07-29

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

#30
20210164112
2021-06-03

Corrosion inhibition treatment for aggressive fluids

#31
20210163818
2021-06-03

Compositions and methods for corrosion inhibitor monitoring

#32
20210147985
2021-05-20

Corrosion preventive compositions

#33
20210147984
2021-05-20

Trifunctional amine based corrosion inhibitor compositions

#34
20210102044
2021-04-08

Quaternary cationic polymers

#35
20210079290
2021-03-18

Amidodiamine corrosion inhibitors

#36
20210061754
2021-03-04

Stabilization of compositions comprising quaternary trialkylalkanolamine hydroxide

#37
20210018442
2021-01-21

Fluorescent measurement of filming amines

#38
20210010943
2021-01-14

Method and device for the determination of film forming amines in a liquid

#39
20200370185
2020-11-26

Mitigating internal corrosion of crude oil transportation pipeline

#40
20200362514
2020-11-19

Method for improving efficiency of steam heating, and papermaking method

#41
20200332423
2020-10-22

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

#42
20200283913
2020-09-10

Corrosion control for supercritical carbon dioxide fluids

#43
20200239338
2020-07-30

Use of cationic sugar-based compounds as corrosion inhibitors in a water system

#44
20200157046
2020-05-21

Methods for forming peroxyformic acid and uses thereof

#45
20200140653
2020-05-07

Quaternary cationic polymers

#46
20200123665
2020-04-23

BONDING SUBSTRATE AND METHOD FOR PROTECTING SURFACES INTENDED FOR WIRE BONDING

#47
20200115805
2020-04-16

Water soluble metalworking concentrate

#48
20200080206
2020-03-12

Oleyl propylenediamine-based corrosion inhibitors

#49
20190265165
2019-08-29

Methods for detecting film-forming amines in water

#50
20190177859
2019-06-13

A WATER-BASED COMPOSITION FOR POST-TREATMENT OF METAL SURFACES

#51
20190169501
2019-06-06

AQUEOUS OIL-IN-WATER EMULSIONS OF ORGANIC AMINES

#52
20190152906
2019-05-23

Methods for forming peroxyformic acid and uses thereof

#53
20190136387
2019-05-09

2-substituted imidazole and benzimidazole corrosion inhibitors

#54
20190119580
2019-04-25

PROCESS FOR CONTROLLING CORROSION IN PETROLEUM REFINING UNITS

#55
20190062267
2019-02-28

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

#56
20190062187
2019-02-28

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

#57
20190031944
2019-01-31

Corrosion inhibitor composition for pipelines

#58
20180347053
2018-12-06

Passivation mixture and systems and methods for selectively passivating substrate materials including germanium or type III-IV materials using the passivation mixture

#59
20180291512
2018-10-11

Low water solubility compositions for use in corrosion protection

#60
20180265991
2018-09-20

Corrosion inhibition composition for pipelines, process of elaboration and synthesis

#61
20180135189
2018-05-17

Additives to control hydrogen sulfide release of sulfur containing and/or phosphorus containing corrosion inhibitors

#62
20180135188
2018-05-17

Composition and method for treating white rust

#63
20180100239
2018-04-12

Process for inhibiting the corrosion of metal surfaces

#64
20180045023
2018-02-15

WATER REMOVAL FROM ANTI-AGGLOMERATE LDHIS

#65
20170355902
2017-12-14

Compositions and methods for corrosion inhibitor monitoring

#66
20170335467
2017-11-23

Corrosion inhibition

#67
20170260442
2017-09-14

Mitigation of corrosion in geothermal systems

#68
20170218524
2017-08-03

Inhibitors of top-of-line corrosion of pipelines conveying crudes from extraction of hydrocarbons

#69
20170190952
2017-07-06

Multiple hydrophilic head corrosion inhibitors

#70
20160304804
2016-10-20

METHOD FOR THE PRESERVATION OF A MACHINE ELEMENT AND USE OF AN ANIONIC LIQUID

#71
20160186040
2016-06-30

Mitigation of corrosion in geothermal systems

#72
20160130494
2016-05-12

Corrosion inhibitors for drilling fluid brines

#73
20160115598
2016-04-28

Mild steel corrosion inhibitor compounds

#74
20160090655
2016-03-31

Anti-corrosion formulations that are stable during storage

#75
20160040301
2016-02-11

Composition and method for treating white rust

#76
20160010035
2016-01-14

Copper corrosion inhibition system

#77
20160002793
2016-01-07

Compositions and methods for inhibiting corrosion in gas turbine air compressors

#78
20150315711
2015-11-05

Method of inhibiting corrosion using a composition of quaternary ammonium salts containing non-halogen anions

#79
20150299867
2015-10-22

ALIPHATIC DICARBOXLIC ACID MIXTURE FORMULATION

#80
20150240365
2015-08-27

Quaternary fatty acid esters as corrosion inhibitors

#81
20150118104
2015-04-30

Corrosion inhibition composition for pipelines, process of elaboration and synthesis

#82
20150105353
2015-04-16

Stable composition for controlling biological growth and method for using same in oil field applications

#83
20150104349
2015-04-16

N-alkyl-N′-poly(oxyalkyl)hexahydropyrimidine-quaternary ammonium salts and the use thereof as corrosion inhibitors

#84
20140303044
2014-10-09

Treatment process for inhibiting top of line corrosion of pipes used in the petroleum industry

#85
20140296575
2014-10-02

Multi-branched mannich base corrosion inhibitor and preparation method thereof

#86
20140255250
2014-09-11

Inhibition of corrosion in boiler systems with etheramines

#87
20140128294
2014-05-08

Corrosion inhibitor systems for low, moderate and high temperature fluids and methods for making and using same

#88
20140102482
2014-04-17

Method for cleaning and conditioning the water-steam circuit of a power plant, especially of a nuclear power plant

#89
20140102481
2014-04-17

Method for conditioning a power-generating circulatory system of a power plant

#90
20140050926
2014-02-20

Method of applying a coating composition of quaternary ammonium salts containing non-halogen anions as anticorrosive agents

#91
20130309129
2013-11-21

Inhibition of corrosion in boiler systems with etheramines

#92
20130256602
2013-10-03

Mannich-base inhibitor for decalcification, preparation method and application thereof

#93
20130228095
2013-09-05

Method and composition for preventing corrosion of metal surfaces

#94
20130065971
2013-03-14

Method for Lowering pH Using Urea Sulfate in the Presence of Corrosion Inhibitor

#95
20130055629
2013-03-07

Methods and compositions for reducing stress corrosion cracking

#96
20120319032
2012-12-20

Biodegradable, frost proof heat-transfer fluid, use thereof in near-surface geothermal installations, and a concentrate for preparing same

#97
20120220499
2012-08-30

Treatment Process For Inhibiting Top Of Line Corrosion Of Pipes Used In The Petroleum Industry

#98
20120128530
2012-05-24

Quaternary ammonium corrosion inhibitor

#99
20120103422
2012-05-03

Water removal from anti-agglomerate LDHIs

#100
20120034488
2012-02-09

SURFACE TREATED STEEL SHEETS WITH CORROSION INHIBITOR FILM AND METHOD FOR MANUFACTURING THE SAME

#101
20120010111
2012-01-12

Rust-preventive oil composition

#102
20110262330
2011-10-27

Alkanolamine-based carbon dioxide absorption solutions with reduced corrosivity

#103
20110152137
2011-06-23

Method of using dithiazine to inhibit corrosion

#104
20110152135
2011-06-23

Viscoelastic surfactant acid treatment

#105
20110152131
2011-06-23

Quaternized dithiazines and method of using same in treatment of wells

#106
20110138683
2011-06-16

Gemini surfactants, process of manufacture and use as multifunctional corrosion inhibitors

#107
20110101280
2011-05-05

Rust preventive oil composition

#108
20110100512
2011-05-05

Quaternary ammonium salts as a conversion coating or coating enhancement

#109
20100261623
2010-10-14

Corrosion inhibitor compositions comprising an aldehyde and a thiol and/or an amine functionalized ring structure and associated methods

#110
20100261024
2010-10-14

SURFACE-TREATED METAL MATERIAL EXCELLENT IN RESISTANCE AGAINST GALVANIC CORROSION AND JOINED ARTICLE OF DISSIMILAR MATERIALS INCLUDING THE SURFACE-TREATED METAL MATERIAL

#111
20100219379
2010-09-02

Corrosion inhibitors containing amide surfactants for a fluid

#112
20100093868
2010-04-15

Water-soluble metal-processing agent, coolant, method for preparation of the coolant, method for prevention of microbial deterioration of water-soluble metal-processing agent, and metal processing

#113
20100056405
2010-03-04

Self-diverting acid treatment with formic-acid-free corrosion inhibitor

#114
20090304937
2009-12-10

Compositions and Method for Coating Metal Surfaces With an Alkoxysilane Coating

#115
20090266450
2009-10-29

Trichrome passivates for treating galvanized steel

#116
20090173663
2009-07-09

Corrosion and gas hydrate inhibitors with an increased biological degradability and a reduced toxicity

#117
20090137122
2009-05-28

Method of passivating chemical mechanical polishing compositions for copper film planarization processes

#118
20090057616
2009-03-05

Corrosion inhibitors containing cationic surfactants

#119
20080274013
2008-11-06

Method of using solubilized transition metal oxides in well operations

#120
20080145549
2008-06-19

Functionalized amine-based corrosion inhibitors for galvanized metal surfaces and method of using same

#121
20070261842
2007-11-15

Treatment Process for Inhibiting Top of Line Corrosion of Pipes Used in the Petroleum Industry

#122
20070187646
2007-08-16

Surface-active amines and methods of using same to impede corrosion

#123
20070181852
2007-08-09

PASSIVATIVE CHEMICAL MECHANICAL POLISHING COMPOSITION FOR COPPER FILM PLANARIZATION

#124
20070164258
2007-07-19

Enhanced galvanized corrosion inhibitor

#125
20070102671
2007-05-10

Corrosion inhibitors, methods of production and uses thereof

#126
20060278124
2006-12-14

Surface treatment method for carbon steel screws embedded within anticorrosive wood, the associated surface structure and baking finishing formula

#127
20060261312
2006-11-23

Quaternary ammonium salts containing non-halogen anions as anticorrosive agents

#128
20060194700
2006-08-31

Corrosion inhibitor systems for low, moderate and high temperature fluids and methods for making and using same

#129
20060180794
2006-08-17

Polyamine-based corrosion inhibitors

#130
20060151071
2006-07-13

Quaternary ammonium salts as a conversion coating or coating enhancement

#131
20060043340
2006-03-02

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

#132
20060040831
2006-02-23

Methods and aqueous acid solutions for acidizing wells containing sludging and emulsifying oil

#133
20060013798
2006-01-19

Bis-quaternary ammonium salt corrosion inhibitors

#134
20060003910
2006-01-05

Composition and method comprising same for removing residue from a substrate

#135
20050263490
2005-12-01

Method of passivating chemical mechanical polishing compositions for copper film planarization processes

#136
20050255693
2005-11-17

Passivative chemical mechanical polishing composition for copper film planarization

#137
20050245409
2005-11-03

Reducing oxide loss when using fluoride chemistries to remove post-etch residues in semiconductor processing

#138
20050012077
2005-01-20

Quaternary ammonium carbonates and bicarbonates as anticorrosive agents

#139
20050003978
2005-01-06

Quaternary ammonium carbonates and bicarbonates as anticorrosive agents

#140
14986756
2016-12-13

Corrosion inhibiting gel