- Sections
- B - Techniques industriellestransports
- B64C - Aéroplaneshélicoptères
- B64C 25/52 - Skis ou patins
Détention brevets de la classe B64C 25/52
Brevets de cette classe: 135
Historique des publications depuis 10 ans
|
26
|
21
|
13
|
14
|
14
|
11
|
12
|
8
|
4
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Textron Innovations Inc. | 2444 |
11 |
| Bell Helicopter Textron Inc. | 961 |
10 |
| Airbus Helicopters | 951 |
9 |
| SZ DJI Technology Co., Ltd | 6933 |
9 |
| Beta Air, LLC | 653 |
7 |
| Airbus Helicopters Deutschland GmbH | 329 |
5 |
| The Boeing Company | 20160 |
4 |
| Amazon Technologies, Inc. | 28087 |
4 |
| Solaris Suborbital Inc. | 6 |
4 |
| Messier-dowty Limited | 86 |
3 |
| Guangzhou Xaircraft Technology Co., Ltd. | 170 |
3 |
| Qualcomm Incorporated | 92196 |
2 |
| AeroVironment, Inc. | 577 |
2 |
| The United States of America as represented by the Administration of NASA | 74 |
2 |
| Universite Laval | 708 |
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 | 8097 |
1 |
| Autres propriétaires | 49 |