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PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H03K 3/01

Details

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Circuits for generating electric pulses; Monostable, bistable or multistable circuits > Details

CPC:

Circuits for generating electric pulses; Monostable, bistable or multistable circuits (H03K4/00 takes precedence; for digital function generators in computers G06F1/02) > Details

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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  • H03K 3/011 Modifications of generator to compensate for variations in physical values, e.g. voltage, temperature since 1995 IPC+CPC Available in IPC and CPC
  • H03K 3/012 Modifications of generator to improve response time or to decrease power consumption since 1995 IPC+CPC Available in IPC and CPC
  • H03K 3/013 Modifications of generator to prevent operation by noise or interference since 1980 IPC+CPC Available in IPC and CPC
  • H03K 3/014 Modifications of generator to ensure starting of oscillations since 1995 IPC+CPC Available in IPC and CPC
  • H03K 3/015 Modifications of generator to maintain energy constant since 1995 IPC+CPC Available in IPC and CPC
  • H03K 3/017 Adjustment of width or dutycycle of pulses (pulse width modulation H03K7/08 ) since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class H03,2013–2023, worldwide · Source: EPO PATSTAT

  1. QUALCOMM US 5,625
  2. SAMSUNG ELECTRONICS COMPANY KR 5,496
  3. MURATA MANUFACTURING COMPANY JP 5,478
  4. HUAWEI TECHNOLOGIES COMPANY CN 3,383
  5. INTEL CORPORATION US 3,091
  6. TEXAS INSTRUMENTS US 3,070
  7. MURATA MANUFACTURING COMPANY 2,722
  8. SKYWORKS SOLUTIONS US 2,290
  9. SEIKO EPSON CORPORATION 2,177
  10. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,158

Top Applicants (CPC)

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