IPC Subgroup
H04B 17/2 of receivers
Introduced: January 2015
Full Title
Monitoring; Testing > of receivers
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TRANSMISSION
6 direct subcodes
Child Classifications
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- H04B 17/21 for calibration; for correcting measurements
- H04B 17/23 Indication means, e.g. displays, alarms or audible means
- H04B 17/24 with feedback of measurements to the transmitter
- H04B 17/26 using historical data, averaging values or statistics
- H04B 17/27 for locating or positioning the transmitter
- H04B 17/29 Performance testing
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 97,396
- HUAWEI TECHNOLOGIES COMPANY CN 96,502
- SAMSUNG ELECTRONICS COMPANY KR 86,981
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
- HUAWEI TECHNOLOGIES COMPANY 55,349
- LG ELECTRONICS KR 53,649
- CANON 33,341
- SONY CORPORATION JP 32,761
- ZTE CORPORATION CN 32,274
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327