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CPC Subgroup Additional Only
F15B 2211/3053

In combination with a pressure compensating valve

Full Title

Circuits for servomotor systems > Directional control > characterised by the type of valves > Directional control valves, e.g. 4/3-directional control valve > In combination with a pressure compensating valve

5 direct subcodes

Child Classifications

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  • F15B 2211/30535 the pressure compensating valve is arranged between pressure source and directional control valve
  • F15B 2211/3054 the pressure compensating valve is arranged between directional control valve and output member
  • F15B 2211/30545 the pressure compensating valve is arranged between output member and directional control valve
  • F15B 2211/3055 the pressure compensating valve is arranged between directional control valve and return line
  • F15B 2211/30555 Inlet and outlet of the pressure compensating valve being connected to the directional control valve

Top Applicants

Top 10 applicants by patent filingsfor class F15, 2013–2023, worldwide · Source: EPO PATSTAT

  1. ROBERT BOSCH DE 1,281
  2. SMC CORPORATION JP 865
  3. HITACHI CONSTRUCTION MACHINERY COMPANY JP 814
  4. KYB CORPORATION JP 584
  5. SCHAEFFLER TECHNOLOGIES & COMPANY DE 536
  6. CATERPILLAR US 532
  7. FESTO & COMPANY DE 486
  8. JOHN DEERE US 419
  9. KAWASAKI HEAVY IND JP 368
  10. HAMILTON SUNDSTRAND US 368