- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/42 - Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
Patent holdings for IPC class F23R 3/42
Total number of patents in this class: 471
10-year publication summary
|
37
|
68
|
43
|
26
|
24
|
11
|
14
|
19
|
23
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| United Technologies Corporation | 2241 |
70 |
| Mitsubishi Heavy Industries, Ltd. | 8847 |
47 |
| General Electric Company | 13865 |
36 |
| Mitsubishi Power, Ltd. | 1806 |
34 |
| Siemens Energy, Inc. | 1705 |
26 |
| Mitsubishi Hitachi Power Systems, Ltd. | 992 |
26 |
| Rtx Corporation | 9529 |
21 |
| GE Infrastructure Technology, LLC | 6196 |
20 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3094 |
19 |
| Mitsubishi Heavy Industries Aero Engines, Ltd. | 134 |
17 |
| Pratt & Whitney Canada Corp. | 4865 |
15 |
| Ansaldo Energia Switzerland AG | 273 |
13 |
| SNECMA S.A. | 1148 |
10 |
| Siemens AG | 24363 |
9 |
| IHI Corporation | 3462 |
9 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
6 |
| Safran Aircraft Engines | 6352 |
5 |
| Solar Turbines Incorporated | 483 |
5 |
| Siemens Energy Global GmbH & Co. KG | 3048 |
4 |
| Honeywell International Inc. | 13566 |
3 |
| Other owners | 76 |