F15 FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
Description
F15 encompasses fluid-pressure actuators and general hydraulic and pneumatic systems that convert fluid pressure into mechanical motion or force. This class covers pumps, motors, cylinders, accumulators, valves, and control systems used in hydraulic and pneumatic applications across various industries including manufacturing, construction, and automation. Related technologies include pressure regulation, flow control, energy storage, and fluid transmission through pipes and hoses. Adjacent classes F16 (engineering elements and general mechanical engineering) and specific application classes handle specialized mechanical components and domain-specific implementations.
Related Keywords
3 direct subcodes
Child Classifications
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- F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15C FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15D FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
Top Applicants
Top 10 applicants by patent filings, 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