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IPC Subgroup
F15B 11/16

with two or more servomotors

Introduced: September 1968

Last revised: January 2006

Full Title

Servomotor systems without provision for follow-up action > with two or more servomotors

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
Subclass:
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR

Filing statistics

IPC F15B 11/16 belongs to the parent subclass F15B, which recorded 120,921 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,066 in 2013 to 12,157 in 2023 (+51%), peaking at 13,556 applications in 2020. 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

4 direct subcodes

Child Classifications

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  • F15B 11/17 using two or more pumps
  • F15B 11/18 used in combination for obtaining stepwise operation of a single controlled member
  • F15B 11/2 controlling several interacting or sequentially-operating members
  • F15B 11/22 Synchronisation of the movement of two or more servomotors

Top Applicants

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

  1. ROBERT BOSCH DE 1,079
  2. SCHAEFFLER TECHNOLOGIES & COMPANY DE 980
  3. SMC CORPORATION JP 737
  4. HITACHI CONSTRUCTION MACHINERY COMPANY JP 674
  5. KYB CORPORATION JP 525
  6. CATERPILLAR US 461
  7. FESTO & COMPANY DE 451
  8. ZHEJIANG UNIVERSITY 448
  9. HITACHI CONSTRUCTION MACHINERY COMPANY 442
  10. XUZHOU HEAVY MACHINERY COMPANY 404