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PCE
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DIFF Subgroup
B01F 27/701

comprising two or more shafts, e.g. in consecutive mixing chambers

Introduced: January 2022

Full Title

Full titles differ between systems:

IPC:

Mixers with rotary stirring devices in fixed receptacles; Kneaders > with stirrers rotating about a horizontal or inclined axis > with paddles, blades or arms > comprising two or more shafts, e.g. in consecutive mixing chambers

CPC:

Mixers with rotary stirring devices in fixed receptacles (magnetic mixers B01F33/45); Kneaders > with stirrers rotating about a horizontal or inclined axis > with paddles, blades or arms > comprising two or more shafts, e.g. in consecutive mixing chambers

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2022.

Child Classifications

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  • B01F 27/702 with intermeshing paddles since 2022 IPC+CPC Available in IPC and CPC
  • B01F 27/703 with stirrers rotating at different speeds since 2022 IPC+CPC Available in IPC and CPC
  • B01F 27/704 with stirrers facing each other, i.e. supported by opposite walls of the receptacle since 2022 IPC+CPC Available in IPC and CPC
  • B01F 27/705 with stirrers rotating in opposite directions about the same axis, e.g. with a first stirrer surrounded by a tube inside a second stirrer since 2022 IPC+CPC Available in IPC and CPC
  • B01F 27/706 with all the shafts in the same receptacle (B01F27/702-B01F27/705 take precedence) since 2022 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 16,893
  2. CHINESE ACADEMY OF SCIENCES 11,733
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 3,898
  4. LG CHEM KR 3,367
  5. PETROCHINA COMPANY 3,224
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,042
  7. ZHEJIANG UNIVERSITY 2,890
  8. MANN + HUMMEL DE 2,740
  9. JOHNSON MATTHEY GB 2,534
  10. SAUDI ARABIAN OIL COMPANY SA 2,527

Top Applicants (CPC)

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