- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/52 - Toroidal combustion chambers
Patent holdings for IPC class F23R 3/52
Total number of patents in this class: 45
10-year publication summary
|
6
|
5
|
4
|
4
|
6
|
4
|
2
|
1
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 17794 |
6 |
| Safran Helicopter Engines | 728 |
6 |
| Jetoptera, Inc. | 85 |
3 |
| Honeywell International Inc. | 14022 |
2 |
| Pratt & Whitney Canada Corp. | 4445 |
2 |
| IHI Corporation | 3366 |
2 |
| Rolls-Royce Deutschland Ltd & Co KG | 799 |
2 |
| Rolls-Royce North American Technologies, Inc. | 1139 |
2 |
| Tokyo Metropolitan Public University Corporation | 78 |
2 |
| Venture Aerospace, LLC | 5 |
2 |
| Rtx Corporation | 9114 |
2 |
| Ansaldo Energia S.p.A. | 131 |
1 |
| Ansaldo Energia Switzerland AG | 284 |
1 |
| Hotstart, Inc. | 10 |
1 |
| Multi Source Energy AG | 1 |
1 |
| Rolls-Royce Corporation | 1728 |
1 |
| Safran Aircraft Engines | 6059 |
1 |
| Tokyo Metropolitan University | 99 |
1 |
| Turbomeca | 228 |
1 |
| Williams International Co., L.L.C. | 57 |
1 |
| Other owners | 5 |