CPC Main Group Additional Only
H04M 2242/00 Special services or facilities
17 direct subcodes
Child Classifications
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- H04M 2242/02 Broadcasting
- H04M 2242/04 for emergency applications
- H04M 2242/06 Lines and connections with preferential service
- H04M 2242/08 menus for interactive user guidance
- H04M 2242/10 Secret communications
- H04M 2242/12 Language recognition, selection or translation arrangements
- H04M 2242/14 with services dependent on location
- H04M 2242/15 Information service where the information is dependent on the location of the subscriber
- H04M 2242/16 with computer telephone integration
- H04M 2242/18 Automated outdialling systems
- H04M 2242/20 Televoting service
- H04M 2242/22 Automatic class or number identification arrangements
- H04M 2242/24 Detection or indication of type terminal or call, (e.g. fax, broadband)
- H04M 2242/26 Paging systems
- H04M 2242/28 Services making use of subscriber schedule information
- H04M 2242/30 Determination of the location of a subscriber
- H04M 2242/40 Data synchronization between user terminals and central server
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498