- 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 3/26 - Controlling the air flow
Patent holdings for IPC class F23R 3/26
Total number of patents in this class: 263
10-year publication summary
28
|
33
|
20
|
26
|
25
|
13
|
21
|
16
|
16
|
5
|
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 |
33 |
General Electric Company | 18133 |
23 |
Rtx Corporation | 8674 |
22 |
Siemens AG | 24990 |
17 |
Mitsubishi Power, Ltd. | 1680 |
12 |
Pratt & Whitney Canada Corp. | 4215 |
11 |
ExxonMobil Upstream Research Company | 2525 |
10 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
9 |
Doosan Heavy Industries & Construction Co., Ltd. | 604 |
9 |
Siemens Energy Global GmbH & Co. KG | 2775 |
9 |
Alstom Technology Ltd | 1196 |
6 |
Rolls-Royce PLC | 2944 |
6 |
King Fahd University of Petroleum and Minerals | 779 |
6 |
Collins Engine Nozzles, Inc. | 264 |
6 |
United Technologies Corporation | 2328 |
5 |
Siemens Energy, Inc. | 1770 |
5 |
Rolls-Royce North American Technologies, Inc. | 1079 |
5 |
Safran Aircraft Engines | 5739 |
5 |
Woodward, Inc. | 602 |
5 |
Ansaldo Energia Switzerland AG | 293 |
4 |
Other owners | 55 |