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CPC Subgroup
B01F 27/80

with stirrers rotating about a substantially vertical axis

Full Title

Mixers with rotary stirring devices in fixed receptacles (magnetic mixers B01F33/45); Kneaders > with stirrers rotating about a substantially vertical axis

17 direct subcodes

Child Classifications

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  • B01F 27/808 with stirrers driven from the bottom of the receptacle
  • B01F 27/82 Pan-type mixers, i.e. mixers in which the stirring elements move along the bottom of a pan-shaped receptacle (with stirring elements moving along the wall or bottom of the receptacle B01F27/091)
  • B01F 27/83 the stirrers being additionally moved radially, or oscillating about an axis perpendicular to the stirrer axis
  • B01F 27/84 with two or more stirrers rotating at different speeds or in opposite directions about the same axis
  • B01F 27/87 the receptacle being divided into superimposed compartments
  • B01F 27/88 with a separate receptacle-stirrer unit that is adapted to be coupled to a drive mechanism
  • B01F 27/93 with rotary discs
  • B01F 27/96 with openwork frames or cages

Top Applicants

Top 10 applicants by patent filingsfor class B01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 10,345
  2. CHINESE ACADEMY OF SCIENCES 8,352
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,134
  4. LG CHEM KR 4,290
  5. SAUDI ARABIAN OIL COMPANY SA 3,444
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,417
  7. DOW GLOBAL TECHNOLOGIES US 3,195
  8. MANN + HUMMEL DE 2,822
  9. JOHNSON MATTHEY GB 2,802
  10. UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,737