B01D 15/1 characterised by constructional or operational features
Introduced: January 2006
Full Title
Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor > Selective adsorption, e.g. chromatography > characterised by constructional or operational features
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- SEPARATION
Filing statistics
IPC B01D 15/1 belongs to the parent subclass B01D, which recorded 1,309,454 patent applications worldwide between 2013 and 2023. Annual filings grew from 46,604 in 2013 to 187,276 in 2023 (+302%), peaking at 197,396 applications in 2020. The most active applicants in class B01 are SINOPEC (CHINA PETROCHEMICAL CORPORATION) (16,893 applications), CHINESE ACADEMY OF SCIENCES (11,733 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (3,898 applications).
Source: EPO PATSTAT, worldwide filings
7 direct subcodes
Child Classifications
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- B01D 15/12 relating to the preparation of the feed
- B01D 15/14 relating to the introduction of the feed to the apparatus
- B01D 15/16 relating to the conditioning of the fluid carrier
- B01D 15/18 relating to flow patterns
- B01D 15/2 relating to the conditioning of the sorbent material
- B01D 15/22 relating to the construction of the column
- B01D 15/24 relating to the treatment of the fractions to be distributed
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