- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02K - Jet-propulsion plants
- F02K 3/115 - Heating the by-pass flow by means of indirect heat exchange
Patent holdings for IPC class F02K 3/115
Total number of patents in this class: 197
10-year publication summary
|
25
|
21
|
18
|
15
|
12
|
12
|
8
|
15
|
11
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9420 |
51 |
| Safran Aircraft Engines | 6302 |
31 |
| Rolls-Royce North American Technologies, Inc. | 1169 |
20 |
| General Electric Company | 13807 |
13 |
| Rolls-Royce PLC | 3125 |
13 |
| Pratt & Whitney Canada Corp. | 4804 |
6 |
| Unison Industries, LLC | 209 |
6 |
| Rolls-Royce Corporation | 1756 |
5 |
| Hamilton Sundstrand Corporation | 4902 |
4 |
| MTU Aero Engines AG | 688 |
4 |
| Safran Nacelles | 717 |
4 |
| Liebherr-Aerospace Toulouse SAS | 149 |
3 |
| Sumitomo Precision Products Co., Ltd. | 302 |
3 |
| Safran Aero Boosters | 103 |
3 |
| Airbus Operations S.A.S. | 2485 |
2 |
| Airbus France | 176 |
2 |
| Airbus Helicopters | 974 |
2 |
| Echogen Power Systems, LLC | 63 |
2 |
| GKN Aerospace Sweden AB | 91 |
2 |
| Safran Aero Boosters SA | 183 |
2 |
| Other owners | 19 |