CPC Main Group
C10K 1/00 Purifying combustible gases containing carbon monoxide (isolation of hydrogen from mixtures containing hydrogen and carbon monoxide C01B3/50)
8 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- C10K 1/02 Dust removal
- C10K 1/04 by cooling to condense non-gaseous materials
- C10K 1/08 by washing with liquids; Reviving the used wash liquors (gas washers B01D)
- C10K 1/20 by treating with solids; Regenerating spent purifying masses
- C10K 1/32 with selectively adsorptive solids, e.g. active carbon
- C10K 1/34 by catalytic conversion of impurities to more readily removable materials
Top Applicants
Top 10 applicants by patent filingsfor class C10, 2013–2023, worldwide · Source: EPO PATSTAT
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,831
- SAUDI ARABIAN OIL COMPANY SA 2,918
- IFPEN (IFP ENERGIES NOUVELLES) FR 2,305
- EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 2,282
- UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,268
- SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 2,124
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,487
- CHEVRON CORPORATION US 1,400
- PETROCHINA COMPANY 1,372
- LUBRIZOL CORPORATION US 1,324