- 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 7/277 - Mechanical drives the starter being a turbine
Patent holdings for IPC class F02C 7/277
Total number of patents in this class: 185
10-year publication summary
|
17
|
13
|
29
|
42
|
26
|
23
|
13
|
12
|
4
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 4525 |
34 |
| Rtx Corporation | 8674 |
28 |
| Unison Industries, LLC | 195 |
26 |
| Safran Helicopter Engines | 676 |
18 |
| General Electric Company | 18133 |
11 |
| Honeywell International Inc. | 13799 |
10 |
| GE Aviation Systems LLC | 569 |
9 |
| Safran Aircraft Engines | 5739 |
8 |
| The Boeing Company | 19843 |
5 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
5 |
| Rolls-Royce PLC | 2944 |
4 |
| Airbus Operations S.L. | 511 |
2 |
| Bombardier Inc. | 749 |
2 |
| PHD, Inc. | 78 |
2 |
| United Technologies Corporation | 2328 |
1 |
| Airbus S.A.S. | 819 |
1 |
| Airbus Operations S.A.S. | 2407 |
1 |
| ExxonMobil Upstream Research Company | 2525 |
1 |
| Herakles | 169 |
1 |
| IMI Hydronic Engineering International S.A. | 81 |
1 |
| Other owners | 15 |