IPC Main Group
C10B 49/00 Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
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:
- DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
Filing statistics
IPC C10B 49/00 belongs to the parent subclass C10B, which recorded 36,200 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,511 in 2013 to 3,734 in 2023 (+49%), peaking at 3,993 applications in 2020. The most active applicants in class C10 are SINOPEC (CHINA PETROCHEMICAL CORPORATION) (8,875 applications), SAUDI ARABIAN OIL COMPANY (2,245 applications) and PETROCHINA COMPANY (2,028 applications).
Source: EPO PATSTAT, worldwide filings
3 direct subcodes
Child Classifications
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- C10B 49/02 with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
- C10B 49/14 with hot liquids, e.g. molten metals
- C10B 49/16 with moving solid heat-carriers in divided form
Top Applicants
Top 10 applicants by patent filingsfor class C10, 2013–2023, worldwide · Source: EPO PATSTAT
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 8,875
- SAUDI ARABIAN OIL COMPANY SA 2,245
- PETROCHINA COMPANY 2,028
- EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 1,980
- IFPEN (IFP ENERGIES NOUVELLES) FR 1,963
- SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 1,878
- CHINESE ACADEMY OF SCIENCES 1,829
- UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 1,787
- LUBRIZOL CORPORATION US 1,277
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,268