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DIFF Subgroup
C09J 101/10

Esters of organic acids (of both organic acids and inorganic acids C09J101/20)

Introduced: January 1990

Title

Titles differ between systems:

IPC: Esters of organic acids

CPC: Esters of organic acids (of both organic acids and inorganic acids C09J101/20)

Full Title

Full titles differ between systems:

IPC:

Adhesives based on cellulose, modified cellulose, or cellulose derivatives > Cellulose derivatives > Esters of organic acids

CPC:

Adhesives based on cellulose, modified cellulose, or cellulose derivatives > Cellulose derivatives > Esters of organic acids (of both organic acids and inorganic acids C09J101/20)

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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  • C09J 101/12 Cellulose acetate since 1990 IPC+CPC Available in IPC and CPC
  • C09J 101/14 Mixed esters, e.g. cellulose acetate-butyrate since 1990 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class C09,2013–2023, worldwide · Source: EPO PATSTAT

  1. LG CHEM KR 6,420
  2. NITTO DENKO CORPORATION JP 5,752
  3. HALLIBURTON ENERGY SERVICES GROUP US 5,650
  4. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 5,635
  5. DOW GLOBAL TECHNOLOGIES US 4,844
  6. MERCK PATENT DE 4,779
  7. CHINESE ACADEMY OF SCIENCES 4,311
  8. FUJIFILM JP 4,205
  9. BASF (BADISCHE ANILIN & SODA FABRIK) DE 4,039
  10. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 3,931

Top Applicants (CPC)

Class C09,2013–2023, worldwide · Source: EPO PATSTAT

  1. LG CHEM KR 7,954
  2. HALLIBURTON ENERGY SERVICES GROUP US 6,584
  3. NITTO DENKO CORPORATION JP 6,500
  4. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,490
  5. DOW GLOBAL TECHNOLOGIES US 6,324
  6. FUJIFILM JP 5,832
  7. MERCK PATENT DE 5,481
  8. BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,147
  9. SAMSUNG DISPLAY KR 5,105
  10. NITTO DENKO CORPORATION 3,584