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IPC Subgroup
G05D 13/28

with provision for performing braking effects in case of increased speed

Introduced: September 1968

Last revised: January 2006

Full Title

Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover > without auxiliary power > Centrifugal governors with fly-weights > with provision for performing braking effects in case of increased speed

Classification Context

Section:
PHYSICS
Class:
CONTROLLING; REGULATING
Subclass:
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES

Top Applicants

Top 10 applicants by patent filingsfor class G05, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SIEMENS DE 4,725
  2. SGCC(STATE GRID CORPORATION OF CHINA) 4,571
  3. FANUC JP 4,233
  4. MITSUBISHI ELECTRIC CORPORATION JP 3,143
  5. FANUC 2,981
  6. ROBERT BOSCH DE 2,813
  7. CHINESE ACADEMY OF SCIENCES 2,500
  8. LG ELECTRONICS KR 2,182
  9. OMRON CORPORATION JP 2,036
  10. SAMSUNG ELECTRONICS COMPANY KR 1,981