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CPC Subgroup Additional Only
C08J 2205/04

characterised by the foam pores

Full Title

Foams characterised by their properties > characterised by the foam pores

Filing statistics

CPC C08J 2205/04 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

6 direct subcodes

Child Classifications

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  • C08J 2205/042 Nanopores, i.e. the average diameter being smaller than 0,1 micrometer
  • C08J 2205/044 Micropores, i.e. average diameter being between 0,1 micrometer and 0,1 millimeter
  • C08J 2205/046 Unimodal pore distribution
  • C08J 2205/048 Bimodal pore distribution, e.g. micropores and nanopores coexisting in the same foam
  • C08J 2205/05 Open cells, i.e. more than 50% of the pores are open
  • C08J 2205/052 Closed cells, i.e. more than 50% of the pores are closed

Top Applicants

Top 10 applicants by patent filingsfor class C08, 2013–2023, worldwide · Source: EPO PATSTAT

  1. LG CHEM KR 15,432
  2. DOW GLOBAL TECHNOLOGIES US 14,214
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 11,155
  4. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,455
  5. FUJIFILM JP 6,178
  6. CHINESE ACADEMY OF SCIENCES 5,569
  7. SHIN-ETSU CHEMICAL COMPANY JP 5,506
  8. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,443
  9. TORAY INDUSTRIES JP 4,635
  10. NITTO DENKO CORPORATION JP 4,620