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CPC Subgroup
C08G 12/46

Block or graft polymers prepared by polycondensation of aldehydes or ketones on to macromolecular compounds

Full Title

Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (aminophenols C08G8/16) > Block or graft polymers prepared by polycondensation of aldehydes or ketones on to macromolecular compounds

Filing statistics

CPC C08G 12/46 belongs to the parent subclass C08G, which recorded 314,683 patent applications worldwide between 2013 and 2023. Annual filings grew from 21,661 in 2013 to 26,211 in 2023 (+21%), peaking at 32,594 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

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