- 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: 2996
10-year publication summary
|
307
|
247
|
227
|
170
|
147
|
149
|
173
|
212
|
220
|
146
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13910 |
360 |
| GE Infrastructure Technology, LLC | 6165 |
346 |
| Rtx Corporation | 10128 |
178 |
| Mitsubishi Heavy Industries, Ltd. | 9139 |
165 |
| Siemens AG | 24020 |
163 |
| Pratt & Whitney Canada Corp. | 5506 |
156 |
| Mitsubishi Power, Ltd. | 1834 |
139 |
| Collins Engine Nozzles, Inc. | 287 |
116 |
| Rolls-Royce PLC | 3223 |
109 |
| Safran Aircraft Engines | 6704 |
93 |
| Siemens Energy Global GmbH & Co. KG | 3357 |
83 |
| Solar Turbines Incorporated | 514 |
78 |
| Ansaldo Energia Switzerland AG | 270 |
52 |
| Doosan Enerbility Co., Ltd. | 270 |
50 |
| Siemens Energy, Inc. | 1684 |
45 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
42 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3263 |
42 |
| IHI Corporation | 3535 |
39 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
39 |
| SNECMA S.A. | 1146 |
35 |
| Other owners | 666 |