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CPC Subgroup Additional Only
H03C 2200/0004

Circuit elements of modulators

Full Title

Indexing scheme relating to details of modulators or modulation methods covered by H03C > Circuit elements of modulators

7 direct subcodes

Child Classifications

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  • H03C 2200/0008 Variable capacitors, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
  • H03C 2200/0012 Emitter or source coupled transistor pairs or long tail pairs
  • H03C 2200/0016 Pre-emphasis or de-emphasis circuits
  • H03C 2200/002 Filters with particular characteristics
  • H03C 2200/0025 Gilbert multipliers
  • H03C 2200/0029 Memory circuits, e.g. ROMs, RAMs, EPROMs, latches, shift registers
  • H03C 2200/0033 Transmission lines, e.g. striplines, microstrips or coplanar lines

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