CPC Subgroup Additional Only
B01J 2220/50 Aspects relating to the use of sorbent or filter aid materials
Full Title
Aspects relating to sorbent materials > Aspects relating to the use of sorbent or filter aid materials
9 direct subcodes
Child Classifications
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- B01J 2220/52 Sorbents specially adapted for preparative chromatography
- B01J 2220/54 Sorbents specially adapted for analytical or investigative chromatography
- B01J 2220/56 Use in the form of a bed
- B01J 2220/58 Use in a single column
- B01J 2220/60 Use in several different columns
- B01J 2220/62 In a cartridge
- B01J 2220/64 In a syringe, pipette, e.g. tip or in a tube, e.g. test-tube or u-shape tube
- B01J 2220/66 Other type of housings or containers not covered by B01J2220/58 - B01J2220/64
- B01J 2220/68 Superabsorbents
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