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PCE
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DIFF Subgroup
B01J 49/05

of fixed beds

Introduced: January 2017

Full Title

Full titles differ between systems:

IPC:

Regeneration or reactivation of ion-exchangers; Apparatus therefor > of fixed beds

CPC:

Regeneration or reactivation of ion-exchangers; Apparatus therefor (ion-exchange chromatography processes or apparatus B01D15/08) > of fixed beds

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

IPC defines codes here since 2017.

Child Classifications

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  • B01J 49/06 containing cationic exchangers since 2017 IPC+CPC Available in IPC and CPC
  • B01J 49/07 containing anionic exchangers since 2017 IPC+CPC Available in IPC and CPC
  • B01J 49/08 containing cationic and anionic exchangers in separate beds since 2017 IPC+CPC Available in IPC and CPC
  • B01J 49/09 of mixed beds since 2017 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 10,345
  2. CHINESE ACADEMY OF SCIENCES 8,352
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,134
  4. LG CHEM KR 4,290
  5. SAUDI ARABIAN OIL COMPANY SA 3,444
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,417
  7. DOW GLOBAL TECHNOLOGIES US 3,195
  8. MANN + HUMMEL DE 2,822
  9. JOHNSON MATTHEY GB 2,802
  10. UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,737