- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 27/58 - Transmitting means, e.g. interrelated with initiating means or means acting on blades
Patent holdings for IPC class B64C 27/58
Total number of patents in this class: 50
10-year publication summary
|
6
|
7
|
5
|
11
|
1
|
4
|
4
|
4
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bell Helicopter Textron Inc. | 1082 |
9 |
| Merlin Technology, Inc. | 164 |
7 |
| Sikorsky Aircraft Corporation | 1123 |
6 |
| Airbus Helicopters | 962 |
4 |
| Textron Innovations Inc. | 2195 |
4 |
| Amazon Technologies, Inc. | 25944 |
2 |
| Blue Bear Systems Research Limited | 9 |
2 |
| Leonardo S.p.A. | 656 |
2 |
| Honda Motor Co., Ltd. | 24878 |
1 |
| Hamilton Sundstrand Corporation | 4737 |
1 |
| Airbus Helicopters Deutschland GmbH | 333 |
1 |
| Aktiebolaget SKF | 2846 |
1 |
| Aurora Flight Sciences Corporation | 236 |
1 |
| GoPro, Inc. | 1905 |
1 |
| Microtecnica S.r.l. | 78 |
1 |
| Prox Dynamics AS | 11 |
1 |
| Safran Electronics & Defense | 1232 |
1 |
| SZ DJI Technology Co., Ltd | 6814 |
1 |
| Pulse Aerospace LLC | 2 |
1 |
| FLIR Unmanned Aerial Systems AS | 37 |
1 |
| Other owners | 2 |