Radio transmission systems, i.e. using radiation field (H04B10/00, H04B15/00 take precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Radio transmission systems, i.e. using radiation field

CPC: Radio transmission systems, i.e. using radiation field (H04B10/00, H04B15/00 take precedence)

Full Title

Full titles differ between systems:

IPC:

Radio transmission systems, i.e. using radiation field

CPC:

Radio transmission systems, i.e. using radiation field (H04B10/00, H04B15/00 take precedence)

Additional Content IPC

Near-field transmission systems, e.g. inductive or capacitive transmission systems Transmission systems employing beams of corpuscular radiation, or electromagnetic waves other than radio waves, e.g. light, infra-red Suppression or limitation of noise or interference

Of 8 combined children, 7 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

H04B 7/002 CPC only CPC only
H04B 7/005 Control of transmission; Equalising since 1980 IPC+CPC Available in IPC and CPC
H04B 7/01 Reducing phase shift since 1980 IPC+CPC Available in IPC and CPC
H04B 7/015 Reducing echo effects since 1980 IPC+CPC Available in IPC and CPC
H04B 7/02 Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas (RAKE receivers H04B1/7115) +1 CPC IPC+CPC Available in IPC and CPC
H04B 7/14 Relay systems IPC+CPC Available in IPC and CPC
H04B 7/22 Scatter propagation systems IPC+CPC Available in IPC and CPC
H04B 7/24 for communication between two or more posts (wireless communication networks H04W) since 1974 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class H04,2013–2023, worldwide · Source: EPO PATSTAT

QUALCOMM US 97,396
HUAWEI TECHNOLOGIES COMPANY CN 96,502
SAMSUNG ELECTRONICS COMPANY KR 86,981
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
HUAWEI TECHNOLOGIES COMPANY 55,349
LG ELECTRONICS KR 53,649
CANON 33,341
SONY CORPORATION JP 32,761
ZTE CORPORATION CN 32,274
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327

Top Applicants (CPC)

Class H04,2013–2023, worldwide · Source: EPO PATSTAT

HUAWEI TECHNOLOGIES COMPANY CN 101,476
QUALCOMM US 101,139
SAMSUNG ELECTRONICS COMPANY KR 96,655
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
LG ELECTRONICS KR 55,253
HUAWEI TECHNOLOGIES COMPANY 54,181
SONY CORPORATION JP 35,309
ZTE CORPORATION CN 32,950
INTEL CORPORATION US 27,533
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498