IPC Main Group
C10H 21/00 Details of acetylene generators; Accessory equipment for, or features of, the wet production of acetylene
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:
- PRODUCTION OF ACETYLENE BY WET METHODS
6 direct subcodes
Child Classifications
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- C10H 21/02 Packages of carbide for use in generators, e.g. cartridges
- C10H 21/08 Safety devices for acetylene generators
- C10H 21/1 Carbide compositions
- C10H 21/12 Gas-tight sealing means, e.g. liquid seals in generators
- C10H 21/14 Ventilation means; Cooling devices
- C10H 21/16 Removing sludge from generators
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