Safety initiators resistant to premature firing by static electricity or stray currents

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Blasting cartridges, i.e. case and explosive > Initiators therefor > Safety initiators resistant to premature firing by static electricity or stray currents

CPC:

Blasting cartridges, i.e. case and explosive (fuse cords, e.g. detonating fuse cords C06C5/00; chemical aspects of detonators, blasting caps or primers C06C7/00) > Initiators therefor (percussion fuzes F42C7/00; percussion caps F42C19/10; electric primers F42C19/12) > Safety initiators resistant to premature firing by static electricity or stray currents

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

Child Classifications

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F42B 3/182 having shunting means since 1990 IPC+CPC Available in IPC and CPC
F42B 3/185 having semi-conductive sealing plugs since 1990 IPC+CPC Available in IPC and CPC
F42B 3/188 having radio-frequency filters since 1990 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F42,2013–2023, worldwide · Source: EPO PATSTAT

RHEINMETALL WAFFE MUNITION DE 442
DETNET SOUTH AFRICA ZA 440
BAE SYSTEMS GB 422
AGENCY FOR DEFENSE DEVELOPMENT KR 403
HANWHA CORPORATION KR 388
BEIJING INSTITUTE OF TECHNOLOGY 375
RAYTHEON COMPANY US 341
NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY 284
TRUE VELOCITY IP HOLDINGS US 264
ANHUI UNIVERSITY OF SCIENCE & TECHNOLOGY 243

Top Applicants (CPC)

Class F42,2013–2023, worldwide · Source: EPO PATSTAT

DETNET SOUTH AFRICA ZA 478
RHEINMETALL WAFFE MUNITION DE 462
BAE SYSTEMS GB 439
RAYTHEON COMPANY US 404
HANWHA CORPORATION KR 388
AGENCY FOR DEFENSE DEVELOPMENT KR 352
BEIJING INSTITUTE OF TECHNOLOGY 294
TRUE VELOCITY IP HOLDINGS US 269
NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY 226
BAE SYSTEMS BOFORS SE 222