- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/12 - Air inlet arrangements for primary air inducing a vortex
Patent holdings for IPC class F23R 3/12
Total number of patents in this class: 222
10-year publication summary
|
23
|
23
|
27
|
20
|
12
|
8
|
11
|
11
|
15
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13830 |
33 |
| Rtx Corporation | 9601 |
24 |
| Ansaldo Energia Switzerland AG | 273 |
14 |
| GE Infrastructure Technology, LLC | 6197 |
13 |
| Mitsubishi Power, Ltd. | 1809 |
13 |
| Pratt & Whitney Canada Corp. | 4958 |
11 |
| Collins Engine Nozzles, Inc. | 285 |
11 |
| Siemens AG | 24333 |
7 |
| Safran Aircraft Engines | 6410 |
7 |
| United Technologies Corporation | 2233 |
5 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
5 |
| 8 Rivers Capital, LLC | 239 |
4 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
4 |
| Turbomeca | 207 |
4 |
| Doosan Enerbility Co., Ltd. | 247 |
4 |
| SNECMA S.A. | 1148 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8900 |
3 |
| Auckland UniServices Limited | 496 |
3 |
| Dyc Turbines, LLC | 4 |
3 |
| Rmv Tech Oy | 4 |
3 |
| Other owners | 48 |