- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/26 - Controlling the air flow
Patent holdings for IPC class F23R 3/26
Total number of patents in this class: 269
10-year publication summary
|
33
|
20
|
26
|
25
|
13
|
21
|
16
|
19
|
6
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Infrastructure Technology, LLC | 6196 |
34 |
| General Electric Company | 13830 |
26 |
| Rtx Corporation | 9313 |
23 |
| Siemens AG | 24547 |
16 |
| Mitsubishi Power, Ltd. | 1758 |
13 |
| Pratt & Whitney Canada Corp. | 4629 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 8657 |
10 |
| ExxonMobil Upstream Research Company | 2411 |
10 |
| Doosan Heavy Industries & Construction Co., Ltd. | 581 |
9 |
| Siemens Energy Global GmbH & Co. KG | 2923 |
8 |
| Rolls-Royce PLC | 3072 |
7 |
| Alstom Technology Ltd | 1111 |
6 |
| King Fahd University of Petroleum and Minerals | 1149 |
6 |
| Collins Engine Nozzles, Inc. | 282 |
6 |
| United Technologies Corporation | 2247 |
5 |
| Rolls-Royce North American Technologies, Inc. | 1162 |
5 |
| Safran Aircraft Engines | 6250 |
5 |
| Woodward, Inc. | 643 |
5 |
| Siemens Energy, Inc. | 1691 |
4 |
| Ansaldo Energia Switzerland AG | 278 |
4 |
| Other owners | 56 |