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CPC Subgroup
B01F 31/80

Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations

Full Title

Mixers with shaking, oscillating, or vibrating mechanisms > Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations

8 direct subcodes

Child Classifications

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  • B01F 31/81 by vibrations generated inside a mixing device not coming from an external drive, e.g. by the flow of material causing a knife to vibrate or by vibrating nozzles
  • B01F 31/85 with a vibrating element inside the receptacle
  • B01F 31/87 transmitting the vibratory energy by means of a fluid, e.g. by means of air shock waves

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