- All sections
- B - Performing operationstransporting
- B64D - Equipment for fitting in or to aircraftflight suitsparachutesarrangement or mounting of power plants or propulsion transmissions in aircraft
- B64D 31/12 - Initiating means actuated automatically for equalising or synchronising power plants
Patent holdings for IPC class B64D 31/12
Total number of patents in this class: 143
10-year publication summary
|
5
|
16
|
10
|
12
|
18
|
11
|
17
|
12
|
8
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 5517 |
26 |
| Rtx Corporation | 10127 |
11 |
| General Electric Company | 13915 |
10 |
| Safran Helicopter Engines | 847 |
9 |
| Bombardier Inc. | 762 |
8 |
| Airbus Helicopters | 952 |
7 |
| Beta Air, LLC | 659 |
6 |
| Kitty Hawk Corporation | 304 |
5 |
| Textron Innovations Inc. | 2534 |
4 |
| Honeywell International Inc. | 12776 |
3 |
| Rolls-Royce North American Technologies, Inc. | 1130 |
3 |
| Safran Aircraft Engines | 6727 |
3 |
| Wing Aviation LLC | 570 |
3 |
| Archer Aviation Inc. | 408 |
3 |
| SNECMA S.A. | 1145 |
2 |
| Hyundai Motor Company | 24808 |
2 |
| Ampaire, Inc. | 51 |
2 |
| Electro Standards Laboratories | 28 |
2 |
| Korea Aerospace Research Institute | 326 |
2 |
| Sikorsky Aircraft Corporation | 1063 |
2 |
| Other owners | 30 |