- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F42B - Explosive charges, e.g. for blastingfireworksammunition
- F42B 1/028 - Shaped or hollow charges characterised by the form of the liner
Patent holdings for IPC class F42B 1/028
Total number of patents in this class: 197
10-year publication summary
|
22
|
22
|
26
|
24
|
21
|
11
|
9
|
8
|
16
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21320 |
20 |
| Schlumberger Technology Corporation | 11820 |
19 |
| DYNAenergetics Europe GmbH | 261 |
15 |
| Raytheon Company | 8448 |
11 |
| Hunting Titan, Inc. | 231 |
8 |
| QinetiQ Limited | 508 |
7 |
| Saab AB | 829 |
7 |
| Wells Fargo Bank, National Association | 4521 |
6 |
| Alford IP Limited | 10 |
5 |
| Lawrence Livermore National Security, LLC | 1976 |
4 |
| Jet Physics Limited | 19 |
4 |
| Owen Oil Tools LP | 75 |
4 |
| Schlumberger Canada Limited | 7601 |
3 |
| Schlumberger Technology B.v. | 5295 |
3 |
| The United States of America as represented by the Secretary of the Navy | 2860 |
3 |
| The United States of America as represented by the Secretary of the Army | 1259 |
3 |
| BAE Systems Bofors AB | 210 |
3 |
| Geodynamics, Inc. | 189 |
3 |
| Services Petroliers Schlumberger | 6023 |
3 |
| The United States of America as represented by the Federal Bureau of Investigation, Department of Justice | 17 |
3 |
| Other owners | 63 |