Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Main Group
C10B 57/00

Other carbonising or coking processes; Features of destructive distillation processes in general

Introduced: September 1968

Of 8 combined children, 7 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

  • C10B 57/005 CPC only CPC only
  • C10B 57/02 Multi-step carbonising or coking processes IPC+CPC Available in IPC and CPC
  • C10B 57/12 Applying additives during coking IPC+CPC Available in IPC and CPC
  • C10B 57/14 Features of low-temperature carbonising processes IPC+CPC Available in IPC and CPC
  • C10B 57/16 Features of high-temperature carbonising processes IPC+CPC Available in IPC and CPC
  • C10B 57/18 Modifying the properties of the distillation gases in the oven (outside the oven C10K) IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class C10,2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 8,875
  2. SAUDI ARABIAN OIL COMPANY SA 2,245
  3. PETROCHINA COMPANY 2,028
  4. EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 1,980
  5. IFPEN (IFP ENERGIES NOUVELLES) FR 1,963
  6. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 1,878
  7. CHINESE ACADEMY OF SCIENCES 1,829
  8. UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 1,787
  9. LUBRIZOL CORPORATION US 1,277
  10. BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,268

Top Applicants (CPC)

Class C10,2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,831
  2. SAUDI ARABIAN OIL COMPANY SA 2,918
  3. IFPEN (IFP ENERGIES NOUVELLES) FR 2,305
  4. EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 2,282
  5. UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,268
  6. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 2,124
  7. BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,487
  8. CHEVRON CORPORATION US 1,400
  9. PETROCHINA COMPANY 1,372
  10. LUBRIZOL CORPORATION US 1,324