F42B 1/028
Characterised by the form of the liner
Official title: characterised by the form of the liner
F42B1/028 (Characterised by the form of the liner) appears on 230 US grants and 198 published applications in this corpus.
Search patents in F42B- Granted patents
- 230
- Published applications
- 198
- Assignees
- 102
- Inventors
- 390
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 3 | 4 |
| 2003 | 6 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 3 | 6 |
| 2010 | 3 | 6 |
| 2011 | 6 | 6 |
| 2012 | 8 | 7 |
| 2013 | 8 | 6 |
| 2014 | 7 | 8 |
| 2015 | 7 | 9 |
| 2016 | 9 | 9 |
| 2017 | 19 | 14 |
| 2018 | 10 | 16 |
| 2019 | 17 | 17 |
| 2020 | 16 | 12 |
| 2021 | 11 | 16 |
| 2022 | 13 | 13 |
| 2023 | 12 | 6 |
| 2024 | 10 | 8 |
| 2025 | 12 | 12 |
| 2026 | 7 | 11 |
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.
- Linear shaped charge electro-explosive (LSCe) device with a backside boosted initiation18 Aug 2026US 12,710,255 B1Raytheon Company
- Shaped charge assembly2 Jun 2026US 12,644,680 B2Saab AB
- Perforating jet shaping systems and methods14 Apr 2026US 12,601,572 B2Schlumberger Technology Corporation
- Multi-part shaped charge liner7 Apr 2026US 12,595,989 B2Schlumberger Technology Corporation
- Modular shaped charge having selectable charge outputs10 Sep 2026US 2026/0266585 A1Lawrence Livermore National Security, LLC
- Linear shaped charge electro-explosive (lsce) device with a backside boosted initiation20 Aug 2026US 2026/0243550 A1Raytheon Company
- Low standoff shaped charge30 Jul 2026US 2026/0219012 A1
- Multi-part shaped charge liner23 Jul 2026US 2026/0210680 A1Schlumberger Technology Corporation
- Systems, devices and methods for breaching structures16 Jul 2026US 2026/0202177 A1Marauder Group LLC
Most cited
By later US patents
- High performance composite shaped charge52US 5,792,977 AWestern Atlas International, Inc. · 1998
- Hollow charges44US 4,672,896 ASociete d'Etudes, de Realisations et d'Applications Techniques · 1987
- Shaped charge having multi-point initiation for well perforating guns and method44US 4,829,901 ABaker Hughes Incorporated · 1989
- Shaped charge liner40US 6,840,178 B2Titan Specialties, Ltd. · 2005
- Shaped charges having reduced slug creation39US 6,021,714 ASchlumberger Technology Corporation · 2000