H04T INDEXING SCHEME ASSOCIATED WITH CLASS H04, RELATING TO STANDARDS FOR ELECTRIC COMMUNICATION TECHNIQUE
Description
H04T serves as an indexing and organizational framework for standards-related content within the broader field of electric communication techniques (Class H04). This subclass does not itself cover substantive technical inventions but rather provides a structured reference system for accessing standardized specifications, protocols, and regulatory frameworks applicable to telecommunications, radio communication, and related electronic communication systems. It functions as a navigational aid for patent examiners and information specialists to locate standards documentation and cross-reference materials that support classification decisions across H04's numerous technical divisions.
3 direct subcodes
Child Classifications
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- H04T 2001/00 Standards for wireless communication networks
- H04T 2012/00 Standards related to data switching networks in general
- H04T 2029/00 Standards related to data transmission protocols not covered by any of the codes H04T2001/00 - H04T2012/00
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