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PCE
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IPC Subgroup
H03H 7/3

Time-delay networks

Introduced: September 1968

Last revised: January 2006

Full Title

Multiple-port networks comprising only passive electrical elements as network components > Time-delay networks

Classification Context

Section:
ELECTRICITY
Class:
ELECTRONIC CIRCUITRY
Subclass:
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

2 direct subcodes

Child Classifications

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  • H03H 7/32 with lumped inductance and capacitance
  • H03H 7/34 with lumped and distributed reactance

Top Applicants

Top 10 applicants by patent filingsfor class H03, 2013–2023, worldwide · Source: EPO PATSTAT

  1. QUALCOMM US 5,625
  2. SAMSUNG ELECTRONICS COMPANY KR 5,496
  3. MURATA MANUFACTURING COMPANY JP 5,478
  4. HUAWEI TECHNOLOGIES COMPANY CN 3,383
  5. INTEL CORPORATION US 3,091
  6. TEXAS INSTRUMENTS US 3,070
  7. MURATA MANUFACTURING COMPANY 2,722
  8. SKYWORKS SOLUTIONS US 2,290
  9. SEIKO EPSON CORPORATION 2,177
  10. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,158