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DIFF Main Group
B04B 15/00

Other accessories for centrifuges

Introduced: September 1968

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

Child Classifications

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  • B04B 15/02 for cooling, heating, or heat insulating IPC+CPC Available in IPC and CPC
  • B04B 15/04 for suppressing the formation of foam IPC+CPC Available in IPC and CPC
  • B04B 15/06 for cleaning bowls, filters, sieves, inserts, or the like IPC+CPC Available in IPC and CPC
  • B04B 15/08 for ventilating or producing a vacuum in the centrifuge IPC+CPC Available in IPC and CPC
  • B04B 15/10 for forming a filtering layer in the rotary bowl IPC+CPC Available in IPC and CPC
  • B04B 15/12 for drying or washing the separated solid particles IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B04,2013–2023, worldwide · Source: EPO PATSTAT

  1. ALFA LAVAL SE 541
  2. GEA MECHANICAL EQUIPMENT DE 297
  3. CSSC NANJING LUZHOU MACHINE COMPANY 165
  4. GEA WESTFALIA SEPARATOR GROUP DE 138
  5. FLOTTWEG SE DE 124
  6. ANDREAS HETTICH & COMPANY DE 108
  7. OMACHRON INTELLECTUAL PROPERTY CA 98
  8. MANN + HUMMEL DE 95
  9. DYSON GB 87
  10. JIANGSU SAIDELI PHARMACEUTICAL MACHINE COMPANY 82

Top Applicants (CPC)

Class B04,2013–2023, worldwide · Source: EPO PATSTAT

  1. ALFA LAVAL SE 576
  2. GEA MECHANICAL EQUIPMENT DE 304
  3. DYSON GB 221
  4. LG ELECTRONICS KR 151
  5. GEA WESTFALIA SEPARATOR GROUP DE 138
  6. FLOTTWEG SE DE 129
  7. FENWAL US 114
  8. BECTON, DICKINSON & COMPANY US 112
  9. ANDREAS HETTICH & COMPANY DE 109
  10. OMACHRON INTELLECTUAL PROPERTY CA 108