CPC Main Group Additional Only
B01D 2256/00 Main component in the product gas stream after treatment
9 direct subcodes
Child Classifications
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- B01D 2256/10 Nitrogen
- B01D 2256/12 Oxygen
- B01D 2256/14 Ozone
- B01D 2256/16 Hydrogen
- B01D 2256/18 Noble gases
- B01D 2256/20 Carbon monoxide
- B01D 2256/22 Carbon dioxide
- B01D 2256/24 Hydrocarbons
- B01D 2256/26 Halogens or halogen compounds
Top Applicants
Top 10 applicants by patent filingsfor class B01, 2013–2023, worldwide · Source: EPO PATSTAT
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 10,345
- CHINESE ACADEMY OF SCIENCES 8,352
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,134
- LG CHEM KR 4,290
- SAUDI ARABIAN OIL COMPANY SA 3,444
- IFPEN (IFP ENERGIES NOUVELLES) FR 3,417
- DOW GLOBAL TECHNOLOGIES US 3,195
- MANN + HUMMEL DE 2,822
- JOHNSON MATTHEY GB 2,802
- UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,737