CPC Subgroup
B01D 24/20 the filtering material being provided in an open container
Full Title
Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (B01D27/02 takes precedence) > with the filter bed stationary during the filtration > the filtering material being provided in an open container
4 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- B01D 24/22 Downward filtration, the filter material being supported by pervious surfaces
- B01D 24/24 Downward filtration, the container having distribution or collection headers or pervious conduits
- B01D 24/26 Upward filtration
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