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DIFF Main Group
B01J 19/00

Chemical, physical or physico-chemical processes in general; Their relevant apparatus

Introduced: January 1980

Of 17 combined children, 11 exist in both systems.

6 codes are CPC-only extensions.

5 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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  • B01J 19/0046 CPC only CPC only
  • B01J 19/008 CPC only CPC only
  • B01J 19/0086 CPC only CPC only
  • B01J 19/0093 CPC only CPC only
  • B01J 19/02 Apparatus characterised by being constructed of material selected for its chemically-resistant properties since 1980 IPC+CPC Available in IPC and CPC
  • B01J 19/06 Solidifying liquids (making microcapsules B01J13/02) since 1980 IPC+CPC Available in IPC and CPC
  • B01J 19/14 Production of inert gas mixtures; Use of inert gases in general since 1980 IPC+CPC Available in IPC and CPC
  • B01J 19/16 Preventing evaporation or oxidation of non-metallic liquids by applying a floating layer, e.g. of microballoons since 1980 IPC+CPC Available in IPC and CPC
  • B01J 19/26 Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 16,893
  2. CHINESE ACADEMY OF SCIENCES 11,733
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 3,898
  4. LG CHEM KR 3,367
  5. PETROCHINA COMPANY 3,224
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,042
  7. ZHEJIANG UNIVERSITY 2,890
  8. MANN + HUMMEL DE 2,740
  9. JOHNSON MATTHEY GB 2,534
  10. SAUDI ARABIAN OIL COMPANY SA 2,527

Top Applicants (CPC)

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 10,345
  2. CHINESE ACADEMY OF SCIENCES 8,352
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,134
  4. LG CHEM KR 4,290
  5. SAUDI ARABIAN OIL COMPANY SA 3,444
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,417
  7. DOW GLOBAL TECHNOLOGIES US 3,195
  8. MANN + HUMMEL DE 2,822
  9. JOHNSON MATTHEY GB 2,802
  10. UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,737