B01F 25/43 Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
Introduced: January 2022
Full Title
Full titles differ between systems:
Flow mixers; Mixers for falling materials, e.g. solid particles > Static mixers > in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions > Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
Flow mixers; Mixers for falling materials, e.g. solid particles (centrifugal mixers B04) > Static mixers (colloid-mills B02C; mixing valves F16K11/00) > in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions > Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
IPC defines codes here since 2022.
Child Classifications
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- B01F 25/431 Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor since 2022 +10 CPC IPC+CPC Available in IPC and CPC
- B01F 25/432 with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa since 2022 +3 CPC IPC+CPC Available in IPC and CPC
- B01F 25/433 Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles since 2022 +8 CPC IPC+CPC Available in IPC and CPC
- B01F 25/434 Mixing tubes comprising cylindrical or conical inserts provided with grooves or protrusions since 2022 +2 CPC IPC+CPC Available in IPC and CPC
- B01F 25/435 Mixing tubes composed of concentric tubular members 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