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IPC Main Group
H03G 11/00

Limiting amplitude; Limiting rate of change of amplitude

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
ELECTRICITY
Class:
ELECTRONIC CIRCUITRY
Subclass:
CONTROL OF AMPLIFICATION

Filing statistics

IPC H03G 11/00 belongs to the parent subclass H03G, which recorded 13,146 patent applications worldwide between 2013 and 2023. Annual filings declined from 1,326 in 2013 to 888 in 2023 (-33%), peaking at 1,425 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

LIMITING of AC signals

4 direct subcodes

Child Classifications

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  • H03G 11/02 by means of diodes
  • H03G 11/04 Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated
  • H03G 11/06 Limiters of angle-modulated signals; such limiters combined with discriminators
  • H03G 11/08 Limiting rate of change of amplitude

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