- 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 3/34 - Feeding into different combustion zones
Patent holdings for IPC class F23R 3/34
Total number of patents in this class: 1086
10-year publication summary
|
116
|
109
|
145
|
104
|
93
|
55
|
57
|
62
|
49
|
11
|
| 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 |
177 |
| General Electric Company | 18133 |
121 |
| Siemens AG | 24990 |
116 |
| Rolls-Royce PLC | 2944 |
53 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
52 |
| Ansaldo Energia Switzerland AG | 293 |
46 |
| Mitsubishi Power, Ltd. | 1680 |
38 |
| Collins Engine Nozzles, Inc. | 264 |
35 |
| Rtx Corporation | 8674 |
33 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
28 |
| Siemens Energy, Inc. | 1770 |
27 |
| Alstom Technology Ltd | 1196 |
24 |
| Solar Turbines Incorporated | 452 |
22 |
| Woodward, Inc. | 602 |
22 |
| Kawasaki Heavy Industries, Limited | 1524 |
21 |
| Safran Aircraft Engines | 5739 |
19 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
19 |
| Pratt & Whitney Canada Corp. | 4215 |
14 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
11 |
| Rolls-Royce Deutschland Ltd & Co KG | 765 |
10 |
| Other owners | 198 |