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IPC Subgroup
B02C 4/02

with two or more rollers

Introduced: September 1968

Last revised: January 2006

Full Title

Crushing or disintegrating by roller mills > with two or more rollers

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
Subclass:
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN

3 direct subcodes

Child Classifications

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  • B02C 4/04 specially adapted for milling paste-like material, e.g. paint, chocolate, colloids
  • B02C 4/06 specially adapted for milling grain
  • B02C 4/08 with co-operating corrugated or toothed crushing-rollers

Top Applicants

Top 10 applicants by patent filingsfor 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