Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
B01F 27/95

with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis

Full Title

Mixers with rotary stirring devices in fixed receptacles (magnetic mixers B01F33/45); Kneaders > with stirrers rotating about a substantially vertical axis > with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis

Filing statistics

CPC B01F 27/95 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

3 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • B01F 27/951
  • B01F 27/952 the stirrers being cylinders with their circumference in contact with the bottom of the receptacle and rotating about an axis at an angle to the sun axis, e.g. mixers of the Muller type
  • B01F 27/953

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