- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 450
10-year publication summary
|
90
|
46
|
86
|
45
|
27
|
24
|
10
|
14
|
19
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| United Technologies Corporation | 2328 |
70 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
43 |
| Mitsubishi Power, Ltd. | 1680 |
30 |
| General Electric Company | 18133 |
28 |
| Siemens Energy, Inc. | 1770 |
27 |
| Mitsubishi Hitachi Power Systems, Ltd. | 999 |
26 |
| Pratt & Whitney Canada Corp. | 4215 |
21 |
| Rtx Corporation | 8674 |
19 |
| GE Infrastructure Technology, LLC | 5873 |
17 |
| Mitsubishi Heavy Industries Aero Engines, Ltd. | 121 |
16 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
15 |
| Ansaldo Energia Switzerland AG | 293 |
13 |
| SNECMA S.A. | 1160 |
10 |
| Siemens AG | 24990 |
9 |
| IHI Corporation | 3268 |
9 |
| Safran Aircraft Engines | 5739 |
7 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
6 |
| Solar Turbines Incorporated | 452 |
5 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
4 |
| Honeywell International Inc. | 13799 |
3 |
| Other owners | 72 |