IPC Subgroup
F42D 1/08 Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
Introduced: September 1968
Last revised: January 2006
Full Title
Blasting methods or apparatus, e.g. for loading or tamping > Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- AMMUNITION; BLASTING
- Subclass:
- BLASTING
7 direct subcodes
Child Classifications
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- F42D 1/1 Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure
- F42D 1/12 Feeding tamping material by pneumatic or hydraulic pressure
- F42D 1/14 Hand-operated tamping or loading
- F42D 1/18 Plugs for boreholes
- F42D 1/2 Tamping cartridges, i.e. cartridges containing tamping material
- F42D 1/22 Means for holding or positioning blasting cartridges or tamping cartridges in boreholes
- F42D 1/24 characterised by the tamping material
Top Applicants
Top 10 applicants by patent filingsfor 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