- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/54 - Reverse-flow combustion chambers
Patent holdings for IPC class F23R 3/54
Total number of patents in this class: 159
10-year publication summary
|
21
|
10
|
5
|
10
|
1
|
3
|
3
|
3
|
5
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 5472 |
20 |
| GE Infrastructure Technology, LLC | 6171 |
16 |
| General Electric Company | 13888 |
14 |
| Mitsubishi Power, Ltd. | 1832 |
13 |
| Siemens AG | 24033 |
11 |
| Rtx Corporation | 10082 |
11 |
| Siemens Energy, Inc. | 1685 |
9 |
| Safran Helicopter Engines | 840 |
8 |
| Opra Technologies B.V. | 12 |
5 |
| Turbomeca | 199 |
4 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3245 |
4 |
| H2 IP UK Limited | 44 |
4 |
| Honeywell International Inc. | 12778 |
3 |
| Ansaldo Energia IP UK Limited | 23 |
3 |
| Ansaldo Energia Switzerland AG | 270 |
3 |
| Safran Ceramics | 446 |
3 |
| Collins Engine Nozzles, Inc. | 287 |
3 |
| SNECMA S.A. | 1146 |
2 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
2 |
| GE Avio S.r.l. | 333 |
2 |
| Other owners | 19 |