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IPC Subgroup
H03K 3/64

Generators producing trains of pulses, i.e. finite sequences of pulses

Introduced: September 1968

Last revised: January 2006

Full Title

Circuits for generating electric pulses; Monostable, bistable or multistable circuits > Generators producing trains of pulses, i.e. finite sequences of pulses

Classification Context

Section:
ELECTRICITY
Class:
ELECTRONIC CIRCUITRY
Subclass:
PULSE TECHNIQUE

Filing statistics

IPC H03K 3/64 belongs to the parent subclass H03K, which recorded 110,917 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,678 in 2013 to 10,761 in 2023 (+24%), peaking at 11,161 applications in 2020. The most active applicants in class H03 are QUALCOMM (5,625 applications), SAMSUNG ELECTRONICS COMPANY (5,496 applications) and MURATA MANUFACTURING COMPANY (5,478 applications).

Source: EPO PATSTAT, worldwide filings

2 direct subcodes

Child Classifications

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  • H03K 3/72 with means for varying repetition rate of trains

Top Applicants

Top 10 applicants by patent filingsfor 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