- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 25/52 - Skis or runners
Patent holdings for IPC class B64C 25/52
Total number of patents in this class: 134
10-year publication summary
|
26
|
21
|
13
|
14
|
14
|
11
|
12
|
8
|
4
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2407 |
11 |
| Bell Helicopter Textron Inc. | 967 |
10 |
| Airbus Helicopters | 936 |
9 |
| SZ DJI Technology Co., Ltd | 6916 |
9 |
| Beta Air, LLC | 645 |
7 |
| Airbus Helicopters Deutschland GmbH | 326 |
5 |
| The Boeing Company | 20131 |
4 |
| Amazon Technologies, Inc. | 27873 |
4 |
| Solaris Suborbital Inc. | 6 |
4 |
| Messier-dowty Limited | 87 |
3 |
| Guangzhou Xaircraft Technology Co., Ltd. | 169 |
3 |
| Qualcomm Incorporated | 90870 |
2 |
| AeroVironment, Inc. | 565 |
2 |
| The United States of America as represented by the Administration of NASA | 73 |
2 |
| Universite Laval | 707 |
2 |
| Bell Textron Inc. | 67 |
2 |
| FLIR Unmanned Aerial Systems ULC | 46 |
2 |
| Hill Group Technologies Limited | 15 |
2 |
| Volocopter Technologies GmbH | 95 |
2 |
| Deere & Company | 8005 |
1 |
| Other owners | 48 |