IPC Main Group
C09K 23/00 Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
Introduced: January 2022
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- Subclass:
- MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
Related Keywords
DISPERSING -agentsEMULSIFYING -agents
23 direct subcodes
Child Classifications
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- C09K 23/02 Alkyl sulfonates or sulfuric acid ester salts derived from monohydric alcohols
- C09K 23/04 Sulfonates or sulfuric acid ester salts derived from polyhydric alcohols or amino alcohols or derivatives thereof
- C09K 23/06 Esters of higher fatty acids with hydroxyalkylated sulfonic acids or salts thereof
- C09K 23/08 Sulfation or sulfonation products of fats, oils, waxes, or higher fatty acids or esters thereof with monovalent alcohols
- C09K 23/1 Derivatives of low-molecular-weight sulfocarboxylic acids or sulfopolycarboxylic acids
- C09K 23/12 Sulfonates of aromatic or alkylated aromatic compounds
- C09K 23/14 Derivatives of phosphoric acid
- C09K 23/16 Amines or polyamines
- C09K 23/18 Quaternary ammonium compounds
- C09K 23/2 Phosphonium and sulfonium compounds
- C09K 23/22 Amides or hydrazides
- C09K 23/26 Sulfonamides
- C09K 23/28 Aminocarboxylic acids
- C09K 23/3 Proteins; Protein hydrolysates
- C09K 23/32 Heterocyclic compounds
- C09K 23/34 Higher-molecular-weight carboxylic acid esters
- C09K 23/38 Alcohols, e.g. oxidation products of paraffins
- C09K 23/4 Phenols
- C09K 23/42 Ethers, e.g. polyglycol ethers of alcohols or phenols
- C09K 23/5 Derivatives of lignin
Top Applicants
Top 10 applicants by patent filingsfor class C09, 2013–2023, worldwide · Source: EPO PATSTAT
- LG CHEM KR 6,420
- NITTO DENKO CORPORATION JP 5,752
- HALLIBURTON ENERGY SERVICES GROUP US 5,650
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 5,635
- DOW GLOBAL TECHNOLOGIES US 4,844
- MERCK PATENT DE 4,779
- CHINESE ACADEMY OF SCIENCES 4,311
- FUJIFILM JP 4,205
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 4,039
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 3,931