IPC Main Group
F15C 3/00 Circuit elements having moving parts
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- Subclass:
- FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
Filing statistics
IPC F15C 3/00 belongs to the parent subclass F15C, which recorded 809 patent applications worldwide between 2013 and 2023. Annual filings declined from 87 in 2013 to 23 in 2023 (-74%), peaking at 94 applications in 2018. The most active applicants in class F15 are ROBERT BOSCH (1,079 applications), SCHAEFFLER TECHNOLOGIES & COMPANY (980 applications) and SMC CORPORATION (737 applications).
Source: EPO PATSTAT, worldwide filings
6 direct subcodes
Child Classifications
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Top Applicants
Top 10 applicants by patent filingsfor class F15, 2013–2023, worldwide · Source: EPO PATSTAT
- ROBERT BOSCH DE 1,079
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 980
- SMC CORPORATION JP 737
- HITACHI CONSTRUCTION MACHINERY COMPANY JP 674
- KYB CORPORATION JP 525
- CATERPILLAR US 461
- FESTO & COMPANY DE 451
- ZHEJIANG UNIVERSITY 448
- HITACHI CONSTRUCTION MACHINERY COMPANY 442
- XUZHOU HEAVY MACHINERY COMPANY 404