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PCE
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DIFF Main Group
G08B 5/00

Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied

Introduced: September 1968

Additional Content IPC

Indicating the time by visual means in mechanically-driven clocks or watches Indicating the time optically by electric means in electromechanical clocks or watches Producing optical time signals at prefixed times by electric means in electromechanical clocks or watches Visual time or date indication means in electronic time-pieces

Of 8 combined children, 4 exist in both systems.

4 codes are CPC-only extensions.

Child Classifications

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  • G08B 5/002 CPC only CPC only
  • G08B 5/004 CPC only CPC only
  • G08B 5/006 CPC only CPC only
  • G08B 5/008 CPC only CPC only
  • G08B 5/02 using only mechanical transmission IPC+CPC Available in IPC and CPC
  • G08B 5/40 using smoke, fire or coloured gases 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