- 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: 49
10-year publication summary
|
4
|
4
|
3
|
6
|
4
|
2
|
1
|
4
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13809 |
6 |
| Safran Helicopter Engines | 802 |
6 |
| Rtx Corporation | 9825 |
5 |
| Jetoptera, Inc. | 97 |
3 |
| Honeywell International Inc. | 13561 |
2 |
| Pratt & Whitney Canada Corp. | 5197 |
2 |
| IHI Corporation | 3513 |
2 |
| Rolls-Royce Deutschland Ltd & Co KG | 838 |
2 |
| Rolls-Royce North American Technologies, Inc. | 1138 |
2 |
| Tokyo Metropolitan Public University Corporation | 90 |
2 |
| Venture Aerospace, LLC | 4 |
2 |
| Ansaldo Energia S.p.A. | 125 |
1 |
| Ansaldo Energia Switzerland AG | 270 |
1 |
| Hotstart, Inc. | 10 |
1 |
| Multi Source Energy AG | 1 |
1 |
| Rolls-Royce Corporation | 1683 |
1 |
| Safran Aircraft Engines | 6509 |
1 |
| Tokyo Metropolitan University | 94 |
1 |
| Turbomeca | 202 |
1 |
| Williams International Co., L.L.C. | 53 |
1 |
| Other owners | 6 |