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IPC Subgroup
H04N 1/23

Reproducing arrangements

Introduced: January 1985

Last revised: January 2006

Full Title

Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Reproducing arrangements

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC COMMUNICATION TECHNIQUE
Subclass:
PICTORIAL COMMUNICATION, e.g. TELEVISION

Related Keywords

COPYING by using electric picture signals

3 direct subcodes

Child Classifications

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  • H04N 1/27 involving production of a magnetic intermediate picture
  • H04N 1/29 involving production of an electrostatic intermediate picture
  • H04N 1/31 Mechanical arrangements for picture transmission, e.g. adaptation of clutches, gearing, gear transmissions

Top Applicants

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

  1. QUALCOMM US 97,396
  2. HUAWEI TECHNOLOGIES COMPANY CN 96,502
  3. SAMSUNG ELECTRONICS COMPANY KR 86,981
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
  5. HUAWEI TECHNOLOGIES COMPANY 55,349
  6. LG ELECTRONICS KR 53,649
  7. CANON 33,341
  8. SONY CORPORATION JP 32,761
  9. ZTE CORPORATION CN 32,274
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327