- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F42B - Explosive charges, e.g. for blasting; fireworks; ammunition
- 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: 177
10-year publication summary
|
14
|
17
|
22
|
22
|
26
|
24
|
21
|
11
|
8
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
18 |
| Schlumberger Technology Corporation | 9690 |
13 |
| DYNAenergetics Europe GmbH | 205 |
12 |
| Hunting Titan, Inc. | 240 |
10 |
| QinetiQ Limited | 621 |
10 |
| Raytheon Company | 8535 |
7 |
| Wells Fargo Bank, National Association | 2945 |
6 |
| Owen Oil Tools LP | 101 |
5 |
| Saab AB | 814 |
5 |
| Alford IP Limited | 7 |
5 |
| The United States of America as represented by the Secretary of the Navy | 2734 |
4 |
| Lawrence Livermore National Security, LLC | 1834 |
4 |
| Geodynamics, Inc. | 203 |
4 |
| Jet Physics Limited | 22 |
4 |
| The United States of America as represented by the Secretary of the Army | 1195 |
3 |
| BAE Systems Bofors AB | 187 |
3 |
| P3D Solutions, Inc. | 4 |
3 |
| Linear Shaped Limited | 5 |
3 |
| Schlumberger Canada Limited | 6913 |
2 |
| Schlumberger Technology B.v. | 4951 |
2 |
| Other owners | 54 |