CPC Main Group Additional Only
B01D 2315/00 Details relating to the membrane module operation
14 direct subcodes
Child Classifications
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- B01D 2315/02 Rotation or turning
- B01D 2315/04 Reciprocation, oscillation or vibration
- B01D 2315/05 Moving the membrane in one direction, e.g. displacement, translational movement
- B01D 2315/06 Submerged-type; Immersion type
- B01D 2315/08 Fully permeating type; Dead-end filtration
- B01D 2315/10 Cross-flow filtration
- B01D 2315/12 Feed-and-bleed systems
- B01D 2315/14 Batch-systems
- B01D 2315/16 Diafiltration
- B01D 2315/17 Depth filtration, asymmetric membranes arranged with wider pore size side towards feed
- B01D 2315/18 Time sequence of one or more process steps carried out periodically within one apparatus
- B01D 2315/20 Operation control schemes defined by a periodically repeated sequence comprising filtration cycles combined with cleaning or gas supply, e.g. aeration
- B01D 2315/22 Membrane contactor
- B01D 2315/24 Counter-current operation
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