CPC Subgroup
C08K 5/04 Oxygen-containing compounds
Full Title
Use of organic ingredients > Oxygen-containing compounds
8 direct subcodes
Child Classifications
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- C08K 5/05 Alcohols; Metal alcoholates
- C08K 5/06 Ethers; Acetals; Ketals; Ortho-esters
- C08K 5/07 Aldehydes; Ketones
- C08K 5/09 Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K 5/10 Esters; Ether-esters
- C08K 5/13 Phenols; Phenolates
- C08K 5/14 Peroxides
- C08K 5/15 Heterocyclic compounds having oxygen in the ring
Top Applicants
Top 10 applicants by patent filingsfor class C08, 2013–2023, worldwide · Source: EPO PATSTAT
- LG CHEM KR 15,432
- DOW GLOBAL TECHNOLOGIES US 14,214
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 11,155
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,455
- FUJIFILM JP 6,178
- CHINESE ACADEMY OF SCIENCES 5,569
- SHIN-ETSU CHEMICAL COMPANY JP 5,506
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,443
- TORAY INDUSTRIES JP 4,635
- NITTO DENKO CORPORATION JP 4,620