CPC Main Group Additional Only
F23N 2223/00 Signal processing; Details thereof
23 direct subcodes
Child Classifications
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- F23N 2223/02 Multiplex transmission
- F23N 2223/04 Memory
- F23N 2223/06 Sampling
- F23N 2223/08 Microprocessor; Microcomputer
- F23N 2223/10 Correlation
- F23N 2223/12 Integration
- F23N 2223/14 Differentiation
- F23N 2223/16 Measuring bridge
- F23N 2223/18 Chopper
- F23N 2223/20 Opto-coupler
- F23N 2223/22 Timing network
- F23N 2223/30 Switches
- F23N 2223/34 with feedforward processing
- F23N 2223/36 PID signal processing
- F23N 2223/38 Remote control
- F23N 2223/40 Simulation
- F23N 2223/42 Function generator
- F23N 2223/44 Optimum control
- F23N 2223/46 Identification
- F23N 2223/48 Learning / Adaptive control
Top Applicants
Top 10 applicants by patent filingsfor 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