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IPC Main Group
G08B 17/00

Fire alarms; Alarms responsive to explosion

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
SIGNALLING
Subclass:
SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS

Filing statistics

IPC G08B 17/00 belongs to the parent subclass G08B, which recorded 306,319 patent applications worldwide between 2013 and 2023. Annual filings grew from 14,077 in 2013 to 35,298 in 2023 (+151%), peaking at 41,214 applications in 2020. The most active applicants in class G08 are TOYOTA MOTOR CORPORATION (6,781 applications), SGCC(STATE GRID CORPORATION OF CHINA) (5,954 applications) and ROBERT BOSCH (3,656 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

FIRE(S) alarmsactuation of fire alarms by SMOKE

6 direct subcodes

Child Classifications

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  • G08B 17/02 Mechanical actuation of the alarm, e.g. by the breaking of a wire
  • G08B 17/04 Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure
  • G08B 17/06 Electric actuation of the alarm, e.g. using a thermally-operated switch
  • G08B 17/08 Actuation involving the use of explosive means
  • G08B 17/12 Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions

Top Applicants

Top 10 applicants by patent filingsfor class G08, 2013–2023, worldwide · Source: EPO PATSTAT

  1. TOYOTA MOTOR CORPORATION 6,781
  2. SGCC(STATE GRID CORPORATION OF CHINA) 5,954
  3. ROBERT BOSCH DE 3,656
  4. DENSO CORPORATION 3,452
  5. HONDA MOTOR COMPANY 2,945
  6. DENSO CORPORATION JP 2,562
  7. HONEYWELL INTERNATIONAL US 2,517
  8. TOYOTA MOTOR CORPORATION JP 2,435
  9. FORD GLOBAL TECHNOLOGIES US 2,239
  10. PANASONIC INTELLECTUAL PROPERTY 2,119