Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
B01D 15/36

involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion

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 > involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Subclass:
SEPARATION

Top Applicants

Top 10 applicants by patent filingsfor class B01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 16,893
  2. CHINESE ACADEMY OF SCIENCES 11,733
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 3,898
  4. LG CHEM KR 3,367
  5. PETROCHINA COMPANY 3,224
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,042
  7. ZHEJIANG UNIVERSITY 2,890
  8. MANN + HUMMEL DE 2,740
  9. JOHNSON MATTHEY GB 2,534
  10. SAUDI ARABIAN OIL COMPANY SA 2,527