with stationary particles, e.g. in fixed beds

Introduced: July 1974

Full Title

Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes > with stationary particles, e.g. in fixed beds

CPC subdivides this area 4x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

IPC defines codes here since 1974.

Child Classifications

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B01J 8/0207 +4 CPC CPC only CPC only
B01J 8/0242 +4 CPC CPC only CPC only
B01J 8/0278 CPC only CPC only
B01J 8/0285 CPC only CPC only
B01J 8/0292 CPC only CPC only
B01J 8/04 the fluid passing successively through two or more beds since 1974 +4 CPC IPC+CPC Available in IPC and CPC
B01J 8/06 in tube reactors; the solid particles being arranged in tubes since 1974 +3 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