CPC Main Group
C08C 19/00 Chemical modification of rubber
Filing statistics
CPC C08C 19/00 belongs to the parent subclass C08C, which recorded 10,290 patent applications worldwide between 2013 and 2023. Annual filings declined from 910 in 2013 to 568 in 2023 (-38%), peaking at 1,251 applications in 2016. The most active applicants in class C08 are LG CHEM (15,432 applications), DOW GLOBAL TECHNOLOGIES (14,214 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (11,155 applications).
Source: EPO PATSTAT, worldwide filings
13 direct subcodes
Child Classifications
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- C08C 19/02 Hydrogenation
- C08C 19/04 Oxidation
- C08C 19/08 Depolymerisation
- C08C 19/10 Isomerisation; Cyclisation
- C08C 19/12 Incorporating halogen atoms into the molecule
- C08C 19/20 Incorporating sulfur atoms into the molecule
- C08C 19/22 Incorporating nitrogen atoms into the molecule
- C08C 19/24 Incorporating phosphorus atoms into the molecule
- C08C 19/25 Incorporating silicon atoms into the molecule
- C08C 19/26 Incorporating metal atoms into the molecule
- C08C 19/28 Reaction with compounds containing carbon-to-carbon unsaturated bonds (graft polymers C08F279/00)
- C08C 19/30 Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
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