- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F02C - Gas-turbine plants; air intakes for jet-propulsion plants; controlling fuel supply in air-breathing jet-propulsion plants
- F02C 9/34 - Joint control of separate flows to main and auxiliary burners
Patent holdings for IPC class F02C 9/34
Total number of patents in this class: 131
10-year publication summary
|
15
|
14
|
9
|
14
|
11
|
4
|
4
|
5
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rolls-Royce PLC | 2944 |
12 |
| GE Infrastructure Technology, LLC | 5873 |
11 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
8 |
| Ansaldo Energia Switzerland AG | 293 |
8 |
| Siemens AG | 24990 |
7 |
| Mitsubishi Hitachi Power Systems, Ltd. | 999 |
7 |
| Woodward, Inc. | 602 |
6 |
| General Electric Company | 18133 |
5 |
| Safran Aircraft Engines | 5739 |
5 |
| Turbomeca | 232 |
5 |
| Hamilton Sundstrand Corporation | 4525 |
4 |
| Mitsubishi Power, Ltd. | 1680 |
4 |
| H2 IP UK Limited | 55 |
4 |
| SNECMA S.A. | 1160 |
3 |
| Alstom Technology Ltd | 1196 |
3 |
| Gas Turbine Efficiency Sweden AB | 25 |
3 |
| Snecma | 1065 |
3 |
| Hitachi, Ltd. | 16452 |
2 |
| Siemens Energy, Inc. | 1770 |
2 |
| Other owners | 19 |