CPC Subgroup Additional Only
B01D 2311/26 Further operations combined with membrane separation processes
Full Title
Details relating to membrane separation process operations and control > Further operations combined with membrane separation processes
24 direct subcodes
Child Classifications
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- B01D 2311/2603 Application of an electric field, different from the potential difference across the membrane
- B01D 2311/2607 Application of a magnetic field
- B01D 2311/2611 Irradiation
- B01D 2311/2623 Ion-Exchange
- B01D 2311/2626 Absorption or adsorption
- B01D 2311/263 Chemical reaction
- B01D 2311/2642 Aggregation, sedimentation, flocculation, precipitation or coagulation
- B01D 2311/2643 Crystallisation
- B01D 2311/2646 Decantation
- B01D 2311/2649 Filtration
- B01D 2311/2653 Degassing
- B01D 2311/2661 Addition of gas
- B01D 2311/2669 Distillation
- B01D 2311/2673 Evaporation
- B01D 2311/2674 Condensation
- B01D 2311/2676 Centrifugal separation
- B01D 2311/268 Water softening
- B01D 2311/2684 Electrochemical processes
- B01D 2311/2688 Biological processes
- B01D 2311/2692 Sterilization
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