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IPC Subgroup
H04M 1/1

associated with switches operated by magnetic effect due to proximity of receiver or hand-set

Introduced: September 1968

Last revised: January 2006

Full Title

Substation equipment, e.g. for use by subscribers > Constructional features of telephone sets > Supports for telephone transmitters or receivers > Hooks; Cradles > associated with switches operated by magnetic effect due to proximity of receiver or hand-set

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC COMMUNICATION TECHNIQUE
Subclass:
TELEPHONIC COMMUNICATION

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