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PCE
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IPC Main Group
C10C 3/00

Working-up pitch, asphalt, bitumen

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
Subclass:
WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNEOUS ACID

Related Keywords

working-up ASPHALTworking-up BITUMENdistilling, granulating or working-up PITCH

6 direct subcodes

Child Classifications

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  • C10C 3/06 by distillation
  • C10C 3/08 by selective extraction
  • C10C 3/18 Removing in solid form from reaction vessels, containers and the like, e.g. by cutting out, by pressing

Top Applicants

Top 10 applicants by patent filingsfor 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