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PCE
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IPC Main Group
H03L 1/00

Stabilisation of generator output against variations of physical values, e.g. power supply

Introduced: January 1980

Last revised: January 2006

Classification Context

Section:
ELECTRICITY
Class:
ELECTRONIC CIRCUITRY
Subclass:
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES

Filing statistics

IPC H03L 1/00 belongs to the parent subclass H03L, which recorded 21,048 patent applications worldwide between 2013 and 2023. Annual filings declined from 2,063 in 2013 to 1,671 in 2023 (-19%), peaking at 2,107 applications in 2014. 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

Related Keywords

STABILISATION of generators of electronic oscillations or pulses

1 direct subcode

Child Classifications

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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