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DIFF Subgroup
C08G 63/46

Polyesters chemically modified by esterification (C08G63/20 takes precedence; by after-treatment C08G63/91)

Introduced: July 1974

Title

Titles differ between systems:

IPC: Polyesters chemically modified by esterification

CPC: Polyesters chemically modified by esterification (C08G63/20 takes precedence; by after-treatment C08G63/91)

Full Title

Full titles differ between systems:

IPC:

Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule > Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds > derived from polycarboxylic acids and polyhydroxy compounds > Polyesters chemically modified by esterification

CPC:

Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule (polyester-amides C08G69/44; polyester-imides C08G73/16) > Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds > derived from polycarboxylic acids and polyhydroxy compounds > Polyesters chemically modified by esterification (C08G63/20 takes precedence; by after-treatment C08G63/91)

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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  • C08G 63/47 by unsaturated monocarboxylic acids or unsaturated monohydric alcohols or reactive derivatives thereof since 1990 IPC+CPC Available in IPC and CPC
  • C08G 63/48 by unsaturated higher fatty oils or their acids; by resin acids since 1974 IPC+CPC Available in IPC and CPC
  • C08G 63/50 by monohydric alcohols 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