B01F 25/31 in conduits or tubes through which the main component flows
Full Title
Flow mixers; Mixers for falling materials, e.g. solid particles (centrifugal mixers B04) > Injector mixers (mixing by creating vortex flow B01F25/10) > in conduits or tubes through which the main component flows
Filing statistics
CPC B01F 25/31 belongs to the parent subclass B01F, which recorded 116,023 patent applications worldwide between 2013 and 2023. Annual filings grew from 5,784 in 2013 to 12,676 in 2023 (+119%), peaking at 16,395 applications in 2018. The most active applicants in class B01 are SINOPEC (CHINA PETROCHEMICAL CORPORATION) (10,345 applications), CHINESE ACADEMY OF SCIENCES (8,352 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (5,134 applications).
Source: EPO PATSTAT, worldwide filings
6 direct subcodes
Child Classifications
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- B01F 25/312 with Venturi elements; Details thereof
- B01F 25/313 wherein additional components are introduced in the centre of the conduit
- B01F 25/314 wherein additional components are introduced at the circumference of the conduit
- B01F 25/315 wherein a difference of pressure at different points of the conduit causes introduction of the additional component into the main component (B01F25/316 takes precedence)
- B01F 25/316 with containers for additional components fixed to the conduit
Top Applicants
Top 10 applicants by patent filingsfor 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