- 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 3/28 - 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: 2486
10-year publication summary
|
252
|
291
|
307
|
247
|
227
|
170
|
145
|
145
|
172
|
56
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Infrastructure Technology, LLC | 5873 |
322 |
| General Electric Company | 18133 |
263 |
| Siemens AG | 24990 |
174 |
| Rtx Corporation | 8674 |
132 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
114 |
| Mitsubishi Power, Ltd. | 1680 |
110 |
| Pratt & Whitney Canada Corp. | 4215 |
106 |
| Collins Engine Nozzles, Inc. | 264 |
100 |
| Safran Aircraft Engines | 5739 |
82 |
| Solar Turbines Incorporated | 452 |
69 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
69 |
| Rolls-Royce PLC | 2944 |
63 |
| Ansaldo Energia Switzerland AG | 293 |
53 |
| Siemens Energy, Inc. | 1770 |
45 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
45 |
| Mitsubishi Hitachi Power Systems, Ltd. | 999 |
39 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
36 |
| SNECMA S.A. | 1160 |
35 |
| Alstom Technology Ltd | 1196 |
34 |
| IHI Corporation | 3268 |
33 |
| Other owners | 562 |