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CPC Subclass Not Allocatable
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 2012/00 Standards related to data switching networks in general

Top Applicants

Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. HUAWEI TECHNOLOGIES COMPANY CN 101,476
  2. QUALCOMM US 101,139
  3. SAMSUNG ELECTRONICS COMPANY KR 96,655
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
  5. LG ELECTRONICS KR 55,253
  6. HUAWEI TECHNOLOGIES COMPANY 54,181
  7. SONY CORPORATION JP 35,309
  8. ZTE CORPORATION CN 32,950
  9. INTEL CORPORATION US 27,533
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498