- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F42B - Explosive charges, e.g. for blasting; fireworks; ammunition
- F42B 3/188 - Safety initiators resistant to premature firing by static electricity or stray currents having radio-frequency filters
Patent holdings for IPC class F42B 3/188
Total number of patents in this class: 4
10-year publication summary
1
|
0
|
1
|
0
|
0
|
0
|
1
|
0
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0
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Schlumberger Technology Corporation | 9690 |
3 |
Dyno Nobel Inc. | 163 |
1 |
Other owners | 0 |