IPC Subgroup
B01D 15/26 characterised by the separation mechanism
Introduced: January 2006
Full Title
Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor > Selective adsorption, e.g. chromatography > characterised by the separation mechanism
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- SEPARATION
6 direct subcodes
Child Classifications
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- B01D 15/3 Partition chromatography
- B01D 15/32 Bonded phase chromatography, e.g. with normal bonded phase, reversed phase or hydrophobic interaction
- B01D 15/34 Size-selective separation, e.g. size-exclusion chromatography; Gel filtration; Permeation
- B01D 15/36 involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
- B01D 15/38 involving specific interaction not covered by one or more of groups , e.g. affinity, ligand exchange or chiral chromatography
- B01D 15/4 using supercritical fluid as mobile phase or eluent
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