Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
H03H 7/18

Networks for phase shifting

Full Title

Multiple-port networks comprising only passive electrical elements as network components > Networks for phase shifting

4 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • H03H 7/19 Two-port phase shifters providing a predetermined phase shift, e.g. "all-pass" filters
  • H03H 7/20 Two-port phase shifters providing an adjustable phase shift
  • H03H 7/21 providing two or more phase shifted output signals, e.g. n-phase output

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