DIFF Main Group
B01F 31/00 Mixers with shaking, oscillating, or vibrating mechanisms
Introduced: January 2022
Of 16 combined children, 13 exist in both systems.
3 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2022.
Child Classifications
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- B01F 31/10 with a mixing receptacle rotating alternately in opposite directions since 2022 IPC+CPC Available in IPC and CPC
- B01F 31/20 Mixing the contents of independent containers, e.g. test tubes since 2022 +7 CPC IPC+CPC Available in IPC and CPC
- B01F 31/29 Mixing by periodically deforming flexible tubular members through which the material is flowing since 2022 IPC+CPC Available in IPC and CPC
- B01F 31/30 comprising a receptacle to only a part of which the shaking, oscillating, or vibrating movement is imparted since 2022 IPC+CPC Available in IPC and CPC
- B01F 31/40 with an axially oscillating rotary stirrer since 2022 +1 CPC IPC+CPC Available in IPC and CPC
- B01F 31/42 with pendulum stirrers, i.e. with stirrers suspended so as to oscillate about fixed points or axes since 2022 IPC+CPC Available in IPC and CPC
- B01F 31/44 with stirrers performing an oscillatory, vibratory or shaking movement (B01F31/40, B01F31/42 take precedence) since 2022 +2 CPC IPC+CPC Available in IPC and CPC
- B01F 31/50 with a receptacle submitted to a combination of movements, i.e. at least one vibratory or oscillatory movement since 2022 IPC+CPC Available in IPC and CPC
- B01F 31/55 the materials to be mixed being contained in a flexible bag submitted to periodical deformation since 2022 IPC+CPC Available in IPC and CPC
- B01F 31/60 with a vibrating receptacle (B01F31/10, B01F31/20, B01F31/50 take precedence) since 2022 IPC+CPC Available in IPC and CPC
- B01F 31/65 the materials to be mixed being directly submitted to a pulsating movement, e.g. by means of an oscillating piston or air column since 2022 +1 CPC IPC+CPC Available in IPC and CPC
- B01F 31/80 Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations since 2022 +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