F42B 1/032
Characterised by the material of the liner
Official title: characterised by the material of the liner
F42B1/032 (Characterised by the material of the liner) appears on 189 US grants and 152 published applications in this corpus.
Search patents in F42B- Granted patents
- 189
- Published applications
- 152
- Assignees
- 86
- Inventors
- 320
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 0 |
| 2002 | 5 | 8 |
| 2003 | 7 | 3 |
| 2004 | 1 | 6 |
| 2005 | 2 | 4 |
| 2006 | 2 | 2 |
| 2007 | 4 | 5 |
| 2008 | 2 | 4 |
| 2009 | 3 | 6 |
| 2010 | 7 | 6 |
| 2011 | 5 | 6 |
| 2012 | 6 | 6 |
| 2013 | 5 | 7 |
| 2014 | 5 | 7 |
| 2015 | 6 | 9 |
| 2016 | 9 | 7 |
| 2017 | 11 | 5 |
| 2018 | 7 | 7 |
| 2019 | 9 | 7 |
| 2020 | 6 | 6 |
| 2021 | 5 | 6 |
| 2022 | 6 | 9 |
| 2023 | 5 | 5 |
| 2024 | 7 | 8 |
| 2025 | 6 | 6 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Insensitive high explosive based tubing cutter1 Sep 2026US 12,723,479 B2Halliburton Energy Services.Inc.
- Propellant charge and cannon shell therewith16 Jun 2026US 12,656,090 B2
- Shaped charge assembly2 Jun 2026US 12,644,680 B2Saab AB
- Overmolded shaped charge and methods of use19 May 2026US 12,631,093 B2Defiant Precision Technologies, LLC
- Perforating jet shaping systems and methods14 Apr 2026US 12,601,572 B2Schlumberger Technology Corporation
- Propellant charge and cannon shell therewith17 Sep 2026US 2026/0276353 A1
- Overmolded shaped charge and methods of use13 Aug 2026US 2026/0235018 A1Defiant Precision Technologies, LLC
- Multi-part shaped charge liner23 Jul 2026US 2026/0210680 A1Schlumberger Technology Corporation
- Explosive charges18 Jun 2026US 2026/0168773 A1Alford IP Limited
- Linear shaped charge with integrated shock wave amplification element14 May 2026US 2026/0133017 A1Maxamcorp International, S.L.
Most cited
By later US patents
- Metal shaped charge liner with isotropic coating77US 4,766,813 AOlin Corporation · 1988
- Shape charge assembly system63US 6,378,438 B1Prime Perforating Systems Limited · 2002
- Tungsten enhanced liner for a shaped charge61US 5,567,906 AWestern Atlas International, Inc. · 1996
- Copper alloys for shaped charge liners58US 5,098,487 AOlin Corporation · 1992
- Energy transfer through a multi-layer liner for shaped charges53US 4,498,367 ASouthwest Energy Group, Ltd. · 1985