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DIFF Main Group
B02C 15/00

Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs

Introduced: September 1968

Of 15 combined children, 8 exist in both systems.

7 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B02C 15/001 CPC only CPC only
  • B02C 15/003 CPC only CPC only
  • B02C 15/006 CPC only CPC only
  • B02C 15/007 CPC only CPC only
  • B02C 15/02 Centrifugal pendulum-type mills IPC+CPC Available in IPC and CPC
  • B02C 15/06 Mills with rollers forced against the interior of a rotary ring, e.g. under spring action (B02C15/04 takes precedence) IPC+CPC Available in IPC and CPC
  • B02C 15/08 Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by a centrally arranged member (B02C15/02 takes precedence) IPC+CPC Available in IPC and CPC
  • B02C 15/10 Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by other means than a centrally-arranged member IPC+CPC Available in IPC and CPC
  • B02C 15/16 with milling members essentially having different peripheral speeds and in the form of a hollow cylinder or cone and an internal roller or cone IPC+CPC Available in IPC and CPC
  • B02C 2015/002 2nd only CPC only CPC only
  • B02C 2015/008 2nd only CPC only CPC only

Top Applicants

Top Applicants (IPC)

Class B02,2013–2023, worldwide · Source: EPO PATSTAT

  1. SANDVIK INTELLECTUAL PROPERTY SE 503
  2. THYSSENKRUPP INDUSTRIAL SOLUTIONS DE 498
  3. THYSSEN KRUPP DE 382
  4. ZHEJIANG ZHE KUANG HEAVY INDUSTRIES COMPANY 239
  5. FLSMIDTH DK 239
  6. ZAOZHUANG SNKSAN INTELLIGENT MACHINERY COMPANY 230
  7. KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 202
  8. METSO MINERALS FI 195
  9. BUEHLER CH 189
  10. ISEKI & CO 186

Top Applicants (CPC)

Class B02,2013–2023, worldwide · Source: EPO PATSTAT

  1. SANDVIK INTELLECTUAL PROPERTY SE 543
  2. THYSSENKRUPP INDUSTRIAL SOLUTIONS DE 517
  3. THYSSEN KRUPP DE 398
  4. FLSMIDTH DK 262
  5. METSO MINERALS FI 227
  6. BUEHLER CH 200
  7. METSO MINERALS INDUSTRIES US 195
  8. METSO OUTOTEC FINLAND FI 191
  9. NETZSCH-FEINMAHLTECHNIK DE 189
  10. ZAOZHUANG SNKSAN INTELLIGENT MACHINERY COMPANY 165