DIFF Main Group
B01F 33/00 Other mixers; Mixing plants; Combinations of mixers
Introduced: January 2022
Additional Content IPC
Mixing or kneading machines for the preparation of dough with rollers Continuous mixing or kneading of plastics with mechanical mixing or kneading devices
Of 14 combined children, 11 exist in both systems.
3 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2022.
Child Classifications
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- B01F 33/05 Mixers using radiation, e.g. magnetic fields or microwaves to mix the material ( B01F33/3031, B01F33/3032 take precedence) since 2022 +5 CPC IPC+CPC Available in IPC and CPC
- B01F 33/12 Mixers in which the mixing of the components is achieved by natural convection since 2022 IPC+CPC Available in IPC and CPC
- B01F 33/25 Mixers with loose mixing elements, e.g. loose balls in a receptacle since 2022 +4 CPC IPC+CPC Available in IPC and CPC
- B01F 33/35 Mixing after turning the mixing vessel upside down since 2022 IPC+CPC Available in IPC and CPC
- B01F 33/40 Mixers using gas or liquid agitation, e.g. with air supply tubes since 2022 +11 CPC IPC+CPC Available in IPC and CPC
- B01F 33/45 Magnetic mixers; Mixers with magnetically driven stirrers since 2022 IPC+CPC Available in IPC and CPC
- B01F 33/50 Movable or transportable mixing devices or plants since 2022 IPC+CPC Available in IPC and CPC
- B01F 33/70 Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming since 2022 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