- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/50 - Combustion chambers comprising an annular flame tube within an annular casing
Patent holdings for IPC class F23R 3/50
Total number of patents in this class: 369
10-year publication summary
|
46
|
43
|
43
|
32
|
24
|
19
|
13
|
16
|
13
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9568 |
80 |
| General Electric Company | 13858 |
59 |
| Safran Aircraft Engines | 6366 |
42 |
| Pratt & Whitney Canada Corp. | 4880 |
25 |
| SNECMA S.A. | 1148 |
22 |
| Rolls-Royce PLC | 3137 |
13 |
| GE Infrastructure Technology, LLC | 6196 |
13 |
| Siemens AG | 24342 |
10 |
| Snecma | 1064 |
10 |
| Collins Engine Nozzles, Inc. | 284 |
9 |
| Siemens Energy Global GmbH & Co. KG | 3056 |
7 |
| Honeywell International Inc. | 13547 |
6 |
| Rolls-Royce Corporation | 1749 |
6 |
| Safran Ceramics | 417 |
6 |
| Safran Helicopter Engines | 776 |
6 |
| Ansaldo Energia Switzerland AG | 273 |
5 |
| Rolls-Royce Deutschland Ltd & Co KG | 822 |
5 |
| Solar Turbines Incorporated | 485 |
5 |
| Rolls-Royce North American Technologies, Inc. | 1175 |
4 |
| Siemens Energy, Inc. | 1702 |
3 |
| Other owners | 33 |