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CPC Subgroup
F42B 22/20

using magnetic or acoustic depth-control means

Full Title

Marine mines, e.g. launched by surface vessels or submarines (F42B12/00 takes precedence; for practice or training F42B8/28; mine laying or sweeping B63G) > Moored mines > at a variable depth setting > using magnetic or acoustic depth-control means

Top Applicants

Top 10 applicants by patent filingsfor class F42, 2013–2023, worldwide · Source: EPO PATSTAT

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