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CPC Subgroup
H03B 7/02

with frequency-determining element comprising lumped inductance and capacitance

Full Title

Generation of oscillations using active element having a negative resistance between two of its electrodes (H03B9/00 takes precedence) > with frequency-determining element comprising lumped inductance and capacitance

3 direct subcodes

Child Classifications

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  • H03B 7/04 active element being vacuum tube
  • H03B 7/10 active element being gas-discharge or arc-discharge tube

Top Applicants

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

  1. SAMSUNG ELECTRONICS COMPANY KR 7,293
  2. QUALCOMM US 7,085
  3. MURATA MANUFACTURING COMPANY JP 5,982
  4. HUAWEI TECHNOLOGIES COMPANY CN 4,641
  5. INTEL CORPORATION US 3,863
  6. TEXAS INSTRUMENTS US 3,409
  7. MURATA MANUFACTURING COMPANY 2,874
  8. SK HYNIX KR 2,644
  9. SKYWORKS SOLUTIONS US 2,545
  10. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,437