CPC Subgroup Additional Only
F15B 2211/86 Control during or prevention of abnormal conditions
Full Title
Circuits for servomotor systems > Other types of control related to particular problems or conditions > Control during or prevention of abnormal conditions
9 direct subcodes
Child Classifications
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- F15B 2211/8603 the abnormal condition being an obstacle
- F15B 2211/8606 the abnormal condition being a shock
- F15B 2211/8609 the abnormal condition being cavitation
- F15B 2211/8613 the abnormal condition being oscillations
- F15B 2211/8616 the abnormal condition being noise or vibration
- F15B 2211/862 the abnormal condition being electric or electronic failure
- F15B 2211/863 the abnormal condition being a hydraulic or pneumatic failure
- F15B 2211/8643 the abnormal condition being a human failure
- F15B 2211/8646 the abnormal condition being hysteresis
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