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Search for IPC and CPC classification codes or keywords
CPC Subgroup Additional Only
H03K 2217/9655

using a single or more light guides

Full Title

Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 > characterised by the way in which the control signal is generated > Switches controlled by moving an element forming part of the switch > with illumination > using a single or more light guides

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