- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23D - Burners
- F23D 14/20 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
Patent holdings for IPC class F23D 14/20
Total number of patents in this class: 144
10-year publication summary
|
6
|
10
|
10
|
9
|
7
|
4
|
5
|
13
|
9
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Canada Limited | 7550 |
5 |
| Schlumberger Technology B.v. | 5270 |
5 |
| Services Petroliers Schlumberger | 5976 |
5 |
| Schlumberger Technology Corporation | 11471 |
4 |
| Schlumberger Holdings Limited | 2740 |
4 |
| Prad Research and Development Limited | 2679 |
4 |
| Toyota Motor Corporation | 34545 |
3 |
| Fives Pillard | 48 |
3 |
| Johns Manville | 927 |
3 |
| Knauf Insulation SPRL | 175 |
3 |
| Rinnai Corporation | 281 |
3 |
| GE Infrastructure Technology, LLC | 6213 |
3 |
| ClearSign Technologies Corporation | 52 |
3 |
| General Electric Company | 13819 |
2 |
| Honeywell International Inc. | 12796 |
2 |
| Johnson Outdoors Inc. | 220 |
2 |
| Whirlpool Corporation | 4555 |
2 |
| Edwards Limited | 781 |
2 |
| Gas-Fired Products, Inc. | 26 |
2 |
| Guangdong Vanward New Electric Co., Ltd. | 20 |
2 |
| Other owners | 82 |