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DIFF Subgroup
C08L 61/20

Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with aminophenols C08L61/04)

Introduced: July 1974

Title

Titles differ between systems:

IPC: Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen

CPC: Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with aminophenols C08L61/04)

Full Title

Full titles differ between systems:

IPC:

Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers > Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen

CPC:

Compositions of condensation polymers of aldehydes or ketones (with polyalcohols C08L59/00; with polynitriles C08L77/00); Compositions of derivatives of such polymers > Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with aminophenols C08L61/04)

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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  • C08L 61/30 of aldehydes with heterocyclic and acyclic or carbocyclic compounds since 1974 IPC+CPC Available in IPC and CPC
  • C08L 61/32 Modified amine-aldehyde condensates since 1974 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class C08,2013–2023, worldwide · Source: EPO PATSTAT

  1. LG CHEM KR 14,262
  2. DOW GLOBAL TECHNOLOGIES US 12,486
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,858
  4. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,877
  5. CHINESE ACADEMY OF SCIENCES 6,993
  6. FUJIFILM JP 5,049
  7. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 4,923
  8. SHIN-ETSU CHEMICAL COMPANY JP 4,517
  9. BOREALIS AT 4,213
  10. ARKEMA FR 4,098

Top Applicants (CPC)

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