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PCE
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CPC Subgroup
B01D 45/12

by centrifugal forces (centrifuges B04B; cyclones B04C)

Full Title

Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces > by centrifugal forces (centrifuges B04B; cyclones B04C)

2 direct subcodes

Child Classifications

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  • B01D 45/14 generated by rotating vanes, discs, drums or brushes
  • B01D 45/16 generated by the winding course of the gas stream

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