F23M 11/00 Safety arrangements
Introduced: September 1968
Additional Content IPC
Applications, arrangements, or dispositions of automatic safety devices in steam boilers Safety arrangements in apparatus specially adapted for combustion of waste or low-grade fuels, e.g. incinerators Arrangement or mounting of safety devices in domestic stoves or ranges for gaseous fuels Arrangement or mounting of safety devices in domestic stoves or ranges for liquid fuels Arrangement or mounting of safety devices in fluid heaters, e.g. heating boilers Arrangement of safety devices in furnaces, kilns, ovens or retorts
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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- F23M 11/02 Preventing emission of flames or hot gases, or admission of air, through working or charging apertures IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class F23,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 2,124
- XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 1,369
- NINGBO FOTILE KITCHENWARE COMPANY 1,363
- SIEMENS DE 997
- UNITED TECHNOLOGIES CORPORATION (UTC) US 937
- GE (GENERAL ELECTRIC COMPANY) 898
- VATTI 815
- CHINESE ACADEMY OF SCIENCES 719
- RINNAI COMPANY 708
- MITSUBISHI HITACHI POWER SYSTEMS 670
Top Applicants (CPC)
Class F23,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 2,581
- UNITED TECHNOLOGIES CORPORATION (UTC) US 1,180
- SIEMENS DE 1,157
- GE (GENERAL ELECTRIC COMPANY) 994
- XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 769
- MITSUBISHI HEAVY INDUSTRIES JP 701
- MITSUBISHI HITACHI POWER SYSTEMS JP 695
- RAYTHEON TECHNOLOGIES CORPORATION US 587
- NINGBO FOTILE KITCHENWARE COMPANY 543
- GENERAL ELECTRIC TECHNOLOGY CH 490