Logic circuits, i.e. having at least two inputs acting on one output (circuits for computer systems using fuzzy logic G06N7/02); Inverting circuits

Introduced: September 1968

Title

Titles differ between systems:

IPC: Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits

CPC: Logic circuits, i.e. having at least two inputs acting on one output (circuits for computer systems using fuzzy logic G06N7/02); Inverting circuits

Full Title

Full titles differ between systems:

IPC:

Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits

CPC:

Logic circuits, i.e. having at least two inputs acting on one output (circuits for computer systems using fuzzy logic G06N7/02); Inverting circuits

Of 10 combined children, 6 exist in both systems.

4 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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H03K 19/0002 CPC only CPC only
H03K 19/0005 CPC only CPC only
H03K 19/0008 +4 CPC CPC only CPC only
H03K 19/0021 +2 CPC CPC only CPC only
H03K 19/003 Modifications for increasing the reliability since 1980 +7 CPC IPC+CPC Available in IPC and CPC
H03K 19/007 Fail-safe circuits since 1980 +1 CPC IPC+CPC Available in IPC and CPC
H03K 19/01 Modifications for accelerating switching since 1980 IPC+CPC Available in IPC and CPC
H03K 19/0175 Coupling arrangements; Interface arrangements (interface arrangements for digital computers G06F3/00, G06F13/00) since 1990 +4 CPC IPC+CPC Available in IPC and CPC
H03K 19/02 using specified components (, H03K19/003 - H03K19/0175 take precedence) IPC+CPC Available in IPC and CPC
H03K 19/20 characterised by logic function, e.g. AND, OR, NOR, NOT circuits (H03K19/003 - H03K19/01 take precedence) 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