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IPC Subgroup
H03H 3/08

for the manufacture of resonators or networks using surface acoustic waves

Introduced: January 1980

Last revised: January 2006

Full Title

Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators > for the manufacture of electromechanical resonators or networks > for the manufacture of resonators or networks using surface acoustic waves

Classification Context

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

1 direct subcode

Child Classifications

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  • H03H 3/1 for obtaining desired frequency or temperature coefficient

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