IPC Subgroup
B01D 46/68 by means acting on the cake side involving movement with regard to the filter elements
Introduced: January 2022
Full Title
Filters or filtering processes specially modified for separating dispersed particles from gases or vapours > Regeneration of the filtering material or filter elements inside the filter > by means acting on the cake side involving movement with regard to the filter elements
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- SEPARATION
2 direct subcodes
Child Classifications
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- B01D 46/681 by scrapers, brushes or the like
- B01D 46/682 by nozzles
Top Applicants
Top 10 applicants by patent filingsfor class B01, 2013–2023, worldwide · Source: EPO PATSTAT
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 16,893
- CHINESE ACADEMY OF SCIENCES 11,733
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 3,898
- LG CHEM KR 3,367
- PETROCHINA COMPANY 3,224
- IFPEN (IFP ENERGIES NOUVELLES) FR 3,042
- ZHEJIANG UNIVERSITY 2,890
- MANN + HUMMEL DE 2,740
- JOHNSON MATTHEY GB 2,534
- SAUDI ARABIAN OIL COMPANY SA 2,527