DIFF Subgroup
B30B 1/26 by cams, eccentrics, or cranks
Introduced: September 1968
Full Title
Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen > by cams, eccentrics, or cranks
CPC subdivides this area 6x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
Child Classifications
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- B30B 1/28 the cam, crank, or eccentric being disposed below the lower platen or table and operating to pull down the upper platen or slide 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