G08B 21/00 Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
Introduced: September 1968
Additional Content IPC
In connection with safety belts or body harnesses in vehicles, control systems, alarms or interlock systems for the correct application of the belt or harness Indicating or measuring liquid level or level of fluent solid material, e.g. indicating by means of an alarm Alarms or signals in apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details are not special to particular types of pressure gauges Radiation-measuring instruments with provision for actuation of an alarm
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2000.
Child Classifications
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- G08B 21/02 Alarms for ensuring the safety of persons since 2000 +2 CPC IPC+CPC Available in IPC and CPC
- G08B 21/18 Status alarms (G08B21/02 takes precedence) since 2000 +3 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class G08,2013–2023, worldwide · Source: EPO PATSTAT
- TOYOTA MOTOR CORPORATION 6,781
- SGCC(STATE GRID CORPORATION OF CHINA) 5,954
- ROBERT BOSCH DE 3,656
- DENSO CORPORATION 3,452
- HONDA MOTOR COMPANY 2,945
- DENSO CORPORATION JP 2,562
- HONEYWELL INTERNATIONAL US 2,517
- TOYOTA MOTOR CORPORATION JP 2,435
- FORD GLOBAL TECHNOLOGIES US 2,239
- PANASONIC INTELLECTUAL PROPERTY 2,119
Top Applicants (CPC)
Class G08,2013–2023, worldwide · Source: EPO PATSTAT
- ROBERT BOSCH DE 3,999
- TOYOTA MOTOR CORPORATION 3,488
- TOYOTA MOTOR CORPORATION JP 3,377
- FORD GLOBAL TECHNOLOGIES US 3,103
- DENSO CORPORATION JP 2,964
- HONEYWELL INTERNATIONAL US 2,873
- HYUNDAI MOTOR COMPANY KR 2,343
- NISSAN MOTOR COMPANY JP 2,265
- SGCC(STATE GRID CORPORATION OF CHINA) 2,247
- SAMSUNG ELECTRONICS COMPANY KR 2,132