F42B 19/22 by internal-combustion engines
Full Title
Marine torpedoes, e.g. launched by surface vessels or submarines (having additional propulsion means for movement through air F42B17/00); Sea mines having self-propulsion means (F42B12/00 takes precedence; launching means F41F; locating by use of radio or other waves G01S; automatic control of course G05D1/00; firing directors or calculators G06G) > Propulsion specially adapted for torpedoes (having additional propulsion means for movement through air F42B17/00; marine propulsion in general B63H) > by internal-combustion engines
Filing statistics
CPC F42B 19/22 belongs to the parent subclass F42B, which recorded 24,690 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,636 in 2013 to 1,882 in 2023 (+15%), peaking at 2,895 applications in 2018. The most active applicants in class F42 are DETNET SOUTH AFRICA (478 applications), RHEINMETALL WAFFE MUNITION (462 applications) and BAE SYSTEMS (439 applications).
Source: EPO PATSTAT, worldwide filings
Top Applicants
Top 10 applicants by patent filingsfor 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