CPC Main Group
F15B 13/00 Details of servomotor systems ( F15B15/00 take precedence)
Filing statistics
CPC F15B 13/00 belongs to the parent subclass F15B, which recorded 65,877 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,301 in 2013 to 5,272 in 2023 (+23%), peaking at 7,310 applications in 2018. The most active applicants in class F15 are ROBERT BOSCH (1,281 applications), SMC CORPORATION (865 applications) and HITACHI CONSTRUCTION MACHINERY COMPANY (814 applications).
Source: EPO PATSTAT, worldwide filings
8 direct subcodes
Child Classifications
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- F15B 13/01 Locking-valves or other detent devices
- F15B 13/02 Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B 13/10 Special arrangements for operating the actuated device without using fluid pressure, e.g. for emergency use
- F15B 13/12 Special measures for increasing the sensitivity of the system
- F15B 13/14 Special measures for giving the operating person a "feeling" of the response of the actuated device
- F15B 13/16 Special measures for feedback
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