F42D 1/00
Blasting methods or apparatus
Official title: Blasting methods or apparatus, e.g. loading or tamping
F42D1/00 (Blasting methods or apparatus) appears on 1,517 US grants and 1,112 published applications in this corpus.
Search patents in F42D- Granted patents
- 1,517
- Published applications
- 1,112
- Assignees
- 495
- Inventors
- 2,137
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 28 | 0 |
| 1978 | 19 | 0 |
| 1979 | 17 | 0 |
| 1980 | 12 | 0 |
| 1981 | 15 | 0 |
| 1982 | 13 | 0 |
| 1983 | 13 | 0 |
| 1984 | 26 | 0 |
| 1985 | 24 | 0 |
| 1986 | 17 | 0 |
| 1987 | 23 | 0 |
| 1988 | 26 | 0 |
| 1989 | 23 | 0 |
| 1990 | 18 | 0 |
| 1991 | 34 | 0 |
| 1992 | 24 | 0 |
| 1993 | 15 | 0 |
| 1994 | 21 | 0 |
| 1995 | 20 | 0 |
| 1996 | 23 | 0 |
| 1997 | 17 | 0 |
| 1998 | 18 | 0 |
| 1999 | 11 | 0 |
| 2000 | 18 | 0 |
| 2001 | 24 | 3 |
| 2002 | 25 | 16 |
| 2003 | 26 | 21 |
| 2004 | 14 | 23 |
| 2005 | 18 | 44 |
| 2006 | 22 | 29 |
| 2007 | 11 | 31 |
| 2008 | 24 | 36 |
| 2009 | 22 | 22 |
| 2010 | 30 | 42 |
| 2011 | 30 | 31 |
| 2012 | 30 | 37 |
| 2013 | 34 | 39 |
| 2014 | 29 | 31 |
| 2015 | 39 | 52 |
| 2016 | 45 | 53 |
| 2017 | 53 | 60 |
| 2018 | 40 | 44 |
| 2019 | 63 | 67 |
| 2020 | 42 | 67 |
| 2021 | 53 | 90 |
| 2022 | 81 | 74 |
| 2023 | 63 | 53 |
| 2024 | 78 | 67 |
| 2025 | 75 | 51 |
| 2026 | 40 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and method for stemming blast holes6 Oct 2026US 12,753,003 B2
- Perforating gun and ballistic interrupter for same6 Oct 2026US 12,753,681 B2Oso Perforating, LLC
- Blasthole stemming based on formaldehyde resins, system and charging method6 Oct 2026US 12,754,001 B2Oxiquim S.A.
- External homogenization systems and methods related thereto6 Oct 2026US 12,754,002 B2Dyno Nobel Asia Pacific Pty Limited
- Downhole perforating gun tube and components29 Sep 2026US 12,747,656 B1SWM International, LLC
- Blasting accessories8 Oct 2026US 2026/0309474 A1Steel King Trust
- Electronic detonator spool and detonator comprising such a spool1 Oct 2026US 2026/0298603 A1Davey Bickford
- Inflatable down hole bag24 Sep 2026US 2026/0286806 A1Mti Group Pty Ltd
- Systems, apparatuses, and methods for delivering explosive compositions into boreholes24 Sep 2026US 2026/0287317 A1Orica International Pte Ltd
- Triggering explosives in holes17 Sep 2026US 2026/0276352 A1Olitek Pty Ltd
Most cited
By later US patents
- Heat activated safety fuse188US 5,392,860 ABaker Hughes Incorporated · 1995
- Apparatus for selectively actuating well tools168US 5,052,489 A1991
- Safe arm system for a perforating apparatus having a transport mode an electric contact mode and an armed mode166US 5,027,708 ASchlumberger Technology Corporation · 1991
- Detonator actuator151US 5,090,321 AICI Australia Limited · 1992
- Detonators for use with explosive devices136US 6,752,083 B1Schlumberger Technology Corporation · 2004