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IPC Main Group
G05F 5/00

Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output

Introduced: September 1968

Last revised: January 2006

Classification Context

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

Filing statistics

IPC G05F 5/00 belongs to the parent subclass G05F, which recorded 38,687 patent applications worldwide between 2013 and 2023. Annual filings declined from 3,937 in 2013 to 3,173 in 2023 (-19%). The most active applicants in class G05 are SIEMENS (4,725 applications), SGCC(STATE GRID CORPORATION OF CHINA) (4,571 applications) and FANUC (4,233 applications).

Source: EPO PATSTAT, worldwide filings

3 direct subcodes

Child Classifications

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  • G05F 5/02 Phase controlled switching using electronic tubes or three or more terminal semiconductive devices
  • G05F 5/08 using a linearly acting final control device

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