- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23Q - Ignitionextinguishing devices
- F23Q 2/173 - Valves therefor
Patent holdings for IPC class F23Q 2/173
Total number of patents in this class: 15
10-year publication summary
|
0
|
3
|
2
|
4
|
2
|
0
|
5
|
0
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Societe BIC | 1009 |
11 |
| Zippo Manufacturing Company | 192 |
2 |
| Roburn Company Ltd. | 15 |
1 |
| Pamel Energy Ltd | 1 |
1 |
| Other owners | 0 |