CPC Main Group Additional Only
F15B 2211/00 Circuits for servomotor systems
7 direct subcodes
Child Classifications
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- F15B 2211/20 Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B 2211/30 Directional control
- F15B 2211/40 Flow control
- F15B 2211/50 Pressure control
- F15B 2211/60 Circuit components or control therefor
- F15B 2211/70 Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B 2211/80 Other types of control related to particular problems or conditions
Top Applicants
Top 10 applicants by patent filingsfor class F15, 2013–2023, worldwide · Source: EPO PATSTAT
- ROBERT BOSCH DE 1,281
- SMC CORPORATION JP 865
- HITACHI CONSTRUCTION MACHINERY COMPANY JP 814
- KYB CORPORATION JP 584
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 536
- CATERPILLAR US 532
- FESTO & COMPANY DE 486
- JOHN DEERE US 419
- KAWASAKI HEAVY IND JP 368
- HAMILTON SUNDSTRAND US 368