IPC Subgroup
H03B 19/16 using uncontrolled rectifying devices, e.g. rectifying diodes or Schottky diodes
Introduced: January 1980
Last revised: January 2006
Full Title
Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source > using uncontrolled rectifying devices, e.g. rectifying diodes or Schottky diodes
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
2 direct subcodes
Child Classifications
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- H03B 19/18 and elements comprising distributed inductance and capacitance
- H03B 19/2 being diodes exhibiting charge storage or enhancement effects
Top Applicants
Top 10 applicants by patent filingsfor class H03, 2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 5,625
- SAMSUNG ELECTRONICS COMPANY KR 5,496
- MURATA MANUFACTURING COMPANY JP 5,478
- HUAWEI TECHNOLOGIES COMPANY CN 3,383
- INTEL CORPORATION US 3,091
- TEXAS INSTRUMENTS US 3,070
- MURATA MANUFACTURING COMPANY 2,722
- SKYWORKS SOLUTIONS US 2,290
- SEIKO EPSON CORPORATION 2,177
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,158