DIFF Subgroup
B30B 3/04 co-operating with one another, e.g. with co-operating cones
Introduced: September 1968
Full Title
Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs > co-operating with one another, e.g. with co-operating cones
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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- B30B 3/06 arranged one within another, e.g. with a roller disposed within a rotating ring and co-operating with the inner surface thereof IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B30,2013–2023, worldwide · Source: EPO PATSTAT
- HUECK RHEINISCHE DE 145
- WORLD PRECISE MACHINERY CO., LTD. (CHINA) 132
- FETTE COMPACTING DE 131
- AIDA ENGINEERING 119
- KORSCH DE 104
- LG ENERGY SOLUTION KR 103
- SIEMPELKAMP MASCHINEN- UND ANLAGENBAU & COMPANY DE 101
- AIDA ENGINEERING JP 98
- YANGZHOU FORGING MACHINE-TOOL COMPANY 95
- SCHULER PRESSEN & COMPANY DE 93
Top Applicants (CPC)
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