CPC Subgroup Additional Only
F15B 2211/40 Flow control
Full Title
Circuits for servomotor systems > Flow control
9 direct subcodes
Child Classifications
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- F15B 2211/405 characterised by the type of flow control means or valve
- F15B 2211/41 characterised by the positions of the valve element
- F15B 2211/415 characterised by the connections of the flow control means in the circuit
- F15B 2211/42 characterised by the type of actuation
- F15B 2211/45 Control of bleed-off flow, e.g. control of bypass flow to the return line
- F15B 2211/455 Control of flow in the feed line, i.e. meter-in control
- F15B 2211/46 Control of flow in the return line, i.e. meter-out control
- F15B 2211/465 Flow control with pressure compensation
- F15B 2211/47 Flow control in one direction only
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