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DIFF Subgroup
B01J 29/06

Crystalline aluminosilicate zeolites; Isomorphous compounds thereof

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Catalysts comprising molecular sieves > having base-exchange properties, e.g. crystalline zeolites, pillared clays > Crystalline aluminosilicate zeolites; Isomorphous compounds thereof

CPC:

Catalysts comprising molecular sieves > having base-exchange properties, e.g. crystalline zeolites > Crystalline aluminosilicate zeolites; Isomorphous compounds thereof

Of 12 combined children, 10 exist in both systems.

2 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

5 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B01J 2029/062 2nd only CPC only CPC only
  • B01J 29/061 CPC only CPC only
  • B01J 29/076 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium since 1995 IPC+CPC Available in IPC and CPC
  • B01J 29/80 Mixtures of different zeolites since 1995 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