Coupling arrangements; Interface arrangements (interface arrangements for digital computers G06F3/00, G06F13/00)

Introduced: January 1990

Title

Titles differ between systems:

IPC: Coupling arrangements; Interface arrangements

CPC: Coupling arrangements; Interface arrangements (interface arrangements for digital computers G06F3/00, G06F13/00)

Full Title

Full titles differ between systems:

IPC:

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

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 > Coupling arrangements; Interface arrangements (interface arrangements for digital computers G06F3/00, G06F13/00)

CPC subdivides this area 3x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

Child Classifications

Navigate with arrow keys, Enter to open

H03K 19/017509 +2 CPC CPC only CPC only
H03K 19/017545 +2 CPC CPC only CPC only
H03K 19/017581 CPC only CPC only
H03K 19/01759 CPC only CPC only
H03K 19/018 using bipolar transistors only since 1990 +4 CPC IPC+CPC Available in IPC and CPC
H03K 19/0185 using field effect transistors only since 1990 +4 CPC 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