using uncontrolled rectifying devices, e.g. rectifying diodes or Schottky diodes

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

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

CPC:

Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source (transference of modulation from one carrier to another H03D7/00) > using uncontrolled rectifying devices, e.g. rectifying diodes or Schottky diodes

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1980.

Child Classifications

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H03B 19/18 and elements comprising distributed inductance and capacitance since 1980 IPC+CPC Available in IPC and CPC
H03B 19/20 being diodes exhibiting charge storage or enhancement effects since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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

SAMSUNG ELECTRONICS COMPANY KR 7,293
QUALCOMM US 7,085
MURATA MANUFACTURING COMPANY JP 5,982
HUAWEI TECHNOLOGIES COMPANY CN 4,641
INTEL CORPORATION US 3,863
TEXAS INSTRUMENTS US 3,409
MURATA MANUFACTURING COMPANY 2,874
SK HYNIX KR 2,644
SKYWORKS SOLUTIONS US 2,545
IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,437