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DIFF Main Group
G08B 17/00

Fire alarms; Alarms responsive to explosion

Introduced: September 1968

Of 7 combined children, 6 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • G08B 17/005 CPC only CPC only
  • G08B 17/02 Mechanical actuation of the alarm, e.g. by the breaking of a wire IPC+CPC Available in IPC and CPC
  • G08B 17/04 Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure IPC+CPC Available in IPC and CPC
  • G08B 17/06 Electric actuation of the alarm, e.g. using a thermally-operated switch IPC+CPC Available in IPC and CPC
  • G08B 17/08 Actuation involving the use of explosive means IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class G08,2013–2023, worldwide · Source: EPO PATSTAT

  1. ROBERT BOSCH DE 3,999
  2. TOYOTA MOTOR CORPORATION 3,488
  3. TOYOTA MOTOR CORPORATION JP 3,377
  4. FORD GLOBAL TECHNOLOGIES US 3,103
  5. DENSO CORPORATION JP 2,964
  6. HONEYWELL INTERNATIONAL US 2,873
  7. HYUNDAI MOTOR COMPANY KR 2,343
  8. NISSAN MOTOR COMPANY JP 2,265
  9. SGCC(STATE GRID CORPORATION OF CHINA) 2,247
  10. SAMSUNG ELECTRONICS COMPANY KR 2,132