B01F 27/113 Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
Full Title
Mixers with rotary stirring devices in fixed receptacles (magnetic mixers B01F33/45); Kneaders > Stirrers > characterised by the configuration of the stirrers > Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
Filing statistics
CPC B01F 27/113 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
4 direct subcodes
Child Classifications
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- B01F 27/1131 with holes in the propeller blade surface
- B01F 27/1132 with guiding tubes or tubular segments fixed to and surrounding the tips of the propeller blades, e.g. for supplementary mixing
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