ClassID:

120655

C23F11/181 - 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 inorganic inhibitors Nitrogen containing compounds

Recent Application in this class:
#1
20260139383
2026-05-21

CLOSED LOOP COOLING WATER CORROSION INHIBITION EMPLOYING POLYMALEATES AND NON-BORATE BUFFERS

#2
20250206676
2025-06-26

CORROSION INHIBITION OF METAL REINFORCEMENT PRESENT IN A HARDENED CONCRETE CONSTRUCTION HAVING ONE OR MORE SURFACES THAT ARE EXPOSED TO CHLORIDE INTRUSION

#3
20230043859
2023-02-09

Tire enhancement product, package, and method

#4
20220220380
2022-07-14

Corrosion Inhibiting Product for Closed Loop Water Systems

#5
20220194868
2022-06-23

Corrosion inhibition of metal reinforcement present in a hardened concrete construction having one or more surfaces that are exposed to chloride intrusion

#6
20210371988
2021-12-02

CLOSED LOOP COOLING WATER CORROSION INHIBITION EMPLOYING POLYMALEATES AND NON-BORATE BUFFERS

#7
20210189214
2021-06-24

Antifreezing coolant composition not including glycol

#8
20210102298
2021-04-08

Organic blend additive useful for inhibiting localized corrosion of equipment used in oil and gas production

#9
20200181072
2020-06-11

Weakly coloured sulfonic acid

#10
20200095689
2020-03-26

Organic blend additive useful for inhibiting localized corrosion of equipment used in oil and gas production

#11
20200017745
2020-01-16

ANTI-FREEZE ANTI-CORROSION CONCENTRATES

#12
20190322939
2019-10-24

Ammonium polyphosphate based and diammonium phosphate based fire-retardant compositions

#13
20190301027
2019-10-03

LOW CORROSION ALKANE SULFONIC ACIDS FOR CONDENSATION REACTIONS

#14
20190153333
2019-05-23

In-line chemical heating for in-situ generation of active chemicals

#15
20190032225
2019-01-31

Pretreatment compositions, coated aluminum alloys, and methods of making the same

#16
20170107630
2017-04-20

Automatic ammonia hydroxide deployment system

#17
20160298243
2016-10-13

Anti-corrosion nanoparticle compositions

#18
20160102233
2016-04-14

Corrosion inhibited compositions and methods of using same

#19
20150315711
2015-11-05

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

#20
20150267101
2015-09-24

Coolant having rapid metal passivation properties

#21
20140061529
2014-03-06

Coolant having rapid metal passivation properties

#22
20120234797
2012-09-20

Corrosion preventing apparatus, corrosion preventing method, and wire electric discharge machining apparatus

#23
20100270494
2010-10-28

HOT TEST FLUID CONTAINING VAPOR PHASE INHIBITION

#24
20060261312
2006-11-23

Quaternary ammonium salts containing non-halogen anions as anticorrosive agents

#25
20050258401
2005-11-24

Corrosion protection for metals in cementitious material and method of applying and making the same