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CPC Subgroup Additional Only
H03B 2200/003

Circuit elements of oscillators

Full Title

Indexing scheme relating to details of oscillators covered by H03B > Circuit elements of oscillators

13 direct subcodes

Child Classifications

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  • H03B 2200/0032 including a device with a Schottky junction
  • H03B 2200/0034 including a buffer amplifier
  • H03B 2200/0036 including an emitter or source coupled transistor pair or a long tail pair
  • H03B 2200/0038 including a current mirror
  • H03B 2200/0044 including optical elements, e.g. optical injection locking
  • H03B 2200/0046 including measures to switch the gain of an amplifier
  • H03B 2200/0048 including measures to switch the frequency band, e.g. by harmonic selection
  • H03B 2200/005 including measures to switch a capacitor
  • H03B 2200/0052 including measures to switch the feedback circuit
  • H03B 2200/0054 including measures to switch a filter, e.g. for frequency tuning or for harmonic selection
  • H03B 2200/0056 including a diode used for switching
  • H03B 2200/0058 with particular transconductance characteristics, e.g. an operational transconductance amplifier

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