ClassID:

120636

C23F11/142 - 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 Hydroxy amines

Recent Application in this class:
#1
20260125604
2026-05-07

REFINERY CRUDE DISTILLATION UNIT CORROSION INHIBITOR

#2
20260117115
2026-04-30

CORROSION INHIBITOR COMPOSITION AND METHOD FOR INHIBITING CORROSION IN GEOTHERMAL WELL SYSTEM

#3
20250313960
2025-10-09

CHOLINE HYDROXIDE FOR SALT DISPLACEMENT IN RENEWABLE FEEDSTOCK PROCESS

#4
20250257471
2025-08-14

ETHOXYLATED FATTY DIAMINE AS A CORROSION INHIBITOR FOR PIPELINES AND STORAGE TANKS

#5
20250179373
2025-06-05

REFINERY CRUDE DISTILLATION UNIT CORROSION INHIBITOR

#6
20240247189
2024-07-25

AROMATIC AMINE EPOXIDE ADDUCTS FOR CORROSION INHIBITION

#7
20240183038
2024-06-06

Ethoxylated fatty diamine as a corrosion inhibitor for pipelines and storage tanks

#8
20230365814
2023-11-16

Corrosion inhibitor solutions and corrosion-resistant substrates that include pyridinium hydroxyl alkyl ether compounds and methods of making the same

#9
20210380883
2021-12-09

Aromatic amine epoxide adducts for corrosion inhibition

#10
20210253936
2021-08-19

Modified acid compositions as alternatives to conventional acids in the oil and gas industry

#11
20210207017
2021-07-08

Modified acid compositions as alternatives to conventional acids in the oil and gas industry

#12
20210164112
2021-06-03

Corrosion inhibition treatment for aggressive fluids

#13
20200165508
2020-05-28

Modified acid compositions as alternatives to conventional acids in the oil and gas industry

#14
20190144314
2019-05-16

DEOXIDIZING AGENT FOR BOILERS AND METHOD FOR DEOXIDIZING BOILER WATER SYSTEM

#15
20190040298
2019-02-07

Modified acid compositions as alternatives to conventional acids in the oil and gas industry

#16
20180187128
2018-07-05

Cleaning liquid, anticorrosion agent, and method for manufacturing the same

#17
20170233873
2017-08-17

subsp. cuspidate wood tar oil composition as an anticorrosive for metals in aqueous media

#18
20170190952
2017-07-06

Multiple hydrophilic head corrosion inhibitors

#19
20170101350
2017-04-13

SYNTHETIC ACID COMPOSITIONS AND USES THEREOF

#20
20160376711
2016-12-29

SYNERGISTICALLY ACTIVE MIXTURE FOR USE AS AN OXYGEN BINDER AND AS A CORROSION INHIBITOR IN AQUEOUS SYSTEMS

#21
20130233543
2013-09-12

Nitrogen containing compounds as corrosion inhibitors

#22
20130178398
2013-07-11

Oxygen scavenger compositions for completion brines

#23
20130072411
2013-03-21

Aqueous cleaning composition containing copper-specific corrosion inhibitor for cleaning inorganic residues on semiconductor substrate

#24
20120118569
2012-05-17

Oxygen scavenger compositions for completion brines

#25
20100035785
2010-02-11

Aqueous cleaning composition containing copper-specific corrosion inhibitor for cleaning inorganic residues on semiconductor substrate

#26
20090218545
2009-09-03

Use and method for reduction of corrosion

#27
20080145549
2008-06-19

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

#28
20060156960
2006-07-20

Use of phosphorus-oxygen acid esters containing alkoxy groups as corrosion inhibitors for reinforced concrete

#29
20060043340
2006-03-02

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

#30
20060042663
2006-03-02

Method for removing iron deposits from within closed loop systems

#31
20050215446
2005-09-29

Aqueous cleaning composition containing copper-specific corrosion inhibitor for cleaning inorganic residues on semiconductor substrate

#32
20050156143
2005-07-21

Oxygen scavenger and the method for oxygen reduction treatment

#33
20050156137
2005-07-21

Nitrogen-containing compounds as corrosion inhibitors

#34
14986756
2016-12-13

Corrosion inhibiting gel