- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02C - Gas-turbine plantsair intakes for jet-propulsion plantscontrolling fuel supply in air-breathing jet-propulsion plants
- F02C 7/28 - Arrangement of seals
Patent holdings for IPC class F02C 7/28
Total number of patents in this class: 1277
10-year publication summary
|
140
|
118
|
130
|
103
|
98
|
76
|
92
|
46
|
37
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9319 |
284 |
| United Technologies Corporation | 2247 |
150 |
| Pratt & Whitney Canada Corp. | 4663 |
118 |
| Mitsubishi Heavy Industries, Ltd. | 8664 |
70 |
| Safran Aircraft Engines | 6265 |
60 |
| General Electric Company | 13838 |
57 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
57 |
| Mitsubishi Power, Ltd. | 1759 |
50 |
| GE Infrastructure Technology, LLC | 6201 |
23 |
| Rolls-Royce PLC | 3075 |
22 |
| Rolls-Royce North American Technologies, Inc. | 1160 |
22 |
| Eagle Industry Co., Ltd. | 1123 |
19 |
| Siemens AG | 24552 |
17 |
| SNECMA S.A. | 1145 |
15 |
| IHI Corporation | 3415 |
15 |
| Rolls-Royce Corporation | 1727 |
15 |
| Solar Turbines Incorporated | 477 |
13 |
| Mitsubishi Heavy Industries Aero Engines, Ltd. | 133 |
12 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3078 |
12 |
| Snecma | 1064 |
12 |
| Other owners | 234 |