- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/28 - Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
Patent holdings for IPC class F23R 3/28
Total number of patents in this class: 2787
10-year publication summary
|
272
|
290
|
240
|
217
|
158
|
140
|
140
|
169
|
209
|
144
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Infrastructure Technology, LLC | 6250 |
344 |
| General Electric Company | 13858 |
314 |
| Siemens AG | 24352 |
168 |
| Rtx Corporation | 9461 |
159 |
| Mitsubishi Heavy Industries, Ltd. | 8803 |
145 |
| Pratt & Whitney Canada Corp. | 4834 |
133 |
| Mitsubishi Power, Ltd. | 1788 |
131 |
| Collins Engine Nozzles, Inc. | 284 |
114 |
| Rolls-Royce PLC | 3134 |
89 |
| Safran Aircraft Engines | 6316 |
88 |
| Siemens Energy Global GmbH & Co. KG | 3026 |
75 |
| Solar Turbines Incorporated | 481 |
71 |
| Ansaldo Energia Switzerland AG | 273 |
52 |
| Doosan Enerbility Co., Ltd. | 240 |
49 |
| Siemens Energy, Inc. | 1708 |
45 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
42 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
39 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3075 |
38 |
| IHI Corporation | 3452 |
36 |
| SNECMA S.A. | 1148 |
35 |
| Other owners | 620 |