DIFF Main Group
F22G 5/00 Controlling superheat temperature
Introduced: September 1968
IPC and CPC are identically structured here. All 8 subcodes exist in both systems.
Child Classifications
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- F22G 5/02 Applications of combustion-control devices, e.g. tangential-firing burners, tilting burners IPC+CPC Available in IPC and CPC
- F22G 5/04 by regulating flue gas flow, e.g. by proportioning or diverting IPC+CPC Available in IPC and CPC
- F22G 5/12 by attemperating the superheated steam, e.g. by injected water sprays +1 CPC IPC+CPC Available in IPC and CPC
- F22G 5/16 by indirectly cooling or heating the superheated steam in auxiliary enclosed heat-exchanger IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class F22,2013–2023, worldwide · Source: EPO PATSTAT
- XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 922
- MIURA COMPANY 416
- HARBIN BOILER COMPANY 390
- MITSUBISHI HITACHI POWER SYSTEMS 303
- XIAN JIAOTONG UNIVERSITY 287
- SGCC(STATE GRID CORPORATION OF CHINA) 257
- HUADIAN ELECTRIC POWER RESEARCH INSTITUTE 253
- SIEMENS DE 247
- MIDEA 243
- NORTH CHINA ELECTRIC POWER UNIVERSITY 223
Top Applicants (CPC)
Class F22,2013–2023, worldwide · Source: EPO PATSTAT
- XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 544
- SIEMENS DE 306
- PHILIP MORRIS PRODUCTS CH 258
- GENERAL ELECTRIC TECHNOLOGY CH 254
- MITSUBISHI HITACHI POWER SYSTEMS JP 235
- XIAN JIAOTONG UNIVERSITY 214
- MITSUBISHI HEAVY INDUSTRIES JP 195
- MITSUBISHI HITACHI POWER SYSTEMS 169
- HARBIN BOILER COMPANY 166
- VALMET TECHNOLOGIES FI 155