- 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 35/04 - Transmitting power from power plants to propellers or rotorsArrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors
Patent holdings for IPC class B64D 35/04
Total number of patents in this class: 221
10-year publication summary
|
10
|
17
|
30
|
16
|
33
|
30
|
21
|
32
|
18
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2343 |
33 |
| Safran Aircraft Engines | 6317 |
21 |
| Pratt & Whitney Canada Corp. | 4838 |
13 |
| Rtx Corporation | 9483 |
12 |
| Bell Helicopter Textron Inc. | 1060 |
10 |
| MagLev Aero Inc. | 18 |
7 |
| The Boeing Company | 20139 |
6 |
| ACC Innovation AB | 17 |
6 |
| Airbus Helicopters | 973 |
5 |
| Safran Helicopter Engines | 768 |
5 |
| Beta Air, LLC | 610 |
5 |
| Rolls-Royce Deutschland Ltd & Co KG | 820 |
4 |
| Sikorsky Aircraft Corporation | 1097 |
4 |
| XTI Aircraft Company | 5 |
4 |
| Leonardo S.p.A. | 669 |
3 |
| Rolls-Royce Corporation | 1760 |
3 |
| Taiwan Flying Vehicle Co., Ltd. | 7 |
3 |
| Rolls-Royce PLC | 3137 |
2 |
| Kawasaki Heavy Industries, Limited | 1633 |
2 |
| Embraer S.A. | 400 |
2 |
| Other owners | 71 |