CPC Subgroup
B30B 11/20 Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
Full Title
Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses (for clay or mixtures containing cement B28B; for plastics materials B29) > Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
1 direct subcode
Child Classifications
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Top Applicants
Top 10 applicants by patent filingsfor class B30, 2013–2023, worldwide · Source: EPO PATSTAT
- HUECK RHEINISCHE DE 192
- SIEMPELKAMP MASCHINEN- UND ANLAGENBAU & COMPANY DE 164
- FETTE COMPACTING DE 138
- PULPAC SE 136
- AIDA ENGINEERING JP 136
- DIEFFENBACHERMASCHINEN- UND ANLAGENBAU DE 131
- LG ENERGY SOLUTION KR 129
- AIDA ENGINEERING 105
- KORSCH DE 105
- JOHN DEERE US 105