CPC Main Group
B01D 3/00 Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping ( gas chromatography B01D15/08; destructive distillation C10B; preparation of alcoholic beverages by distillation C12H6/02)
14 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- B01D 3/02 in boilers or stills
- B01D 3/04 pipe stills
- B01D 3/06 Flash distillation
- B01D 3/08 in rotating vessels; Atomisation on rotating discs ( , B01D3/10 take precedence)
- B01D 3/10 Vacuum distillation (B01D3/12 takes precedence)
- B01D 3/12 Molecular distillation
- B01D 3/14 Fractional distillation
- B01D 3/34 with one or more auxiliary substances
- B01D 3/42 Regulation; Control
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