CPC Main Group Additional Only
C08J 2203/00 Foams characterized by the expanding agent
Filing statistics
CPC C08J 2203/00 belongs to the parent subclass C08J, which recorded 285,413 patent applications worldwide between 2013 and 2023. Annual filings grew from 17,164 in 2013 to 23,907 in 2023 (+39%), peaking at 31,262 applications in 2020. 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
11 direct subcodes
Child Classifications
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- C08J 2203/02 CO2-releasing, e.g. NaHCO3 and citric acid
- C08J 2203/04 N2 releasing, ex azodicarbonamide or nitroso compound
- C08J 2203/06 CO2, N2 or noble gases
- C08J 2203/08 Supercritical fluid
- C08J 2203/10 Water or water-releasing compounds
- C08J 2203/12 Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
- C08J 2203/14 Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J 2203/16 Unsaturated hydrocarbons
- C08J 2203/18 Binary blends of expanding agents
- C08J 2203/20 Ternary blends of expanding agents
- C08J 2203/22 Expandable microspheres, e.g. Expancel®
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