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CPC Subgroup
F15B 7/04

In which the ratio between pump stroke and motor stroke varies with the resistance against the motor

Full Title

Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors > In which the ratio between pump stroke and motor stroke varies with the resistance against the motor

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