- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F02C - Gas-turbine plants; air intakes for jet-propulsion plants; controlling fuel supply in air-breathing jet-propulsion plants
- F02C 9/28 - Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed
Patent holdings for IPC class F02C 9/28
Total number of patents in this class: 1080
10-year publication summary
|
122
|
111
|
107
|
116
|
90
|
83
|
79
|
53
|
89
|
22
|
| 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 |
115 |
| Pratt & Whitney Canada Corp. | 4215 |
93 |
| General Electric Company | 18133 |
67 |
| Rolls-Royce PLC | 2944 |
64 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
44 |
| Siemens AG | 24990 |
42 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
42 |
| Mitsubishi Power, Ltd. | 1680 |
42 |
| Rtx Corporation | 8674 |
40 |
| Safran Aircraft Engines | 5739 |
39 |
| Mitsubishi Hitachi Power Systems, Ltd. | 999 |
32 |
| Hamilton Sundstrand Corporation | 4525 |
27 |
| Rolls-Royce Corporation | 1686 |
17 |
| Safran Helicopter Engines | 676 |
17 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
16 |
| SNECMA S.A. | 1160 |
14 |
| Alstom Technology Ltd | 1196 |
14 |
| Gas Turbine Efficiency Sweden AB | 25 |
14 |
| Sikorsky Aircraft Corporation | 1150 |
14 |
| 8 Rivers Capital, LLC | 224 |
13 |
| Other owners | 314 |