with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Catalysts comprising metals or metal oxides or hydroxides, not provided for in group > of the iron group metals or copper > combined with metals, oxides or hydroxides provided for in groups > with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium

CPC:

Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 (B01J21/16 takes precedence) > of the iron group metals or copper > combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 > with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium

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

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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B01J 23/843 Arsenic, antimony or bismuth since 1995 +3 CPC IPC+CPC Available in IPC and CPC
B01J 23/847 Vanadium, niobium or tantalum since 1995 +4 CPC IPC+CPC Available in IPC and CPC
B01J 23/85 Chromium, molybdenum or tungsten since 1980 IPC+CPC Available in IPC and CPC
B01J 23/889 Manganese, technetium or rhenium since 1995 +4 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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

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