CPC Main Group
B01J 47/00 Ion-exchange processes in general; Apparatus therefor (ion-exchange chromatography processes or apparatus B01D15/08)
10 direct subcodes
Child Classifications
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- B01J 47/011 using batch processes
- B01J 47/012 using portable ion-exchange apparatus
- B01J 47/014 in which the adsorbent properties of the ion-exchanger are involved, e.g. recovery of proteins or other high-molecular compounds
- B01J 47/015 Electron-exchangers
- B01J 47/016 Modification or after-treatment of ion-exchangers
- B01J 47/018 Granulation; Incorporation of ion-exchangers in a matrix; Mixing with inert materials
- B01J 47/02 Column or bed processes
- B01J 47/10 with moving ion-exchange material; with ion-exchange material in suspension or in fluidised-bed form
- B01J 47/12 characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes (electrodialysis or electro-osmosis B01D61/42)
- B01J 47/14 Controlling or regulating
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