- Sections
- B - Techniques industriellestransports
- B64C - Aéroplaneshélicoptères
- B64C 25/54 - Flotteurs
Détention brevets de la classe B64C 25/54
Brevets de cette classe: 84
Historique des publications depuis 10 ans
|
5
|
9
|
18
|
16
|
12
|
10
|
8
|
8
|
4
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Kitty Hawk Corporation | 301 |
15 |
| E.B. Robinson Ltd. | 7 |
5 |
| Wipaire, Inc. | 17 |
5 |
| Safran AeroSystems | 242 |
5 |
| Comp Air Solutions, LLC | 4 |
4 |
| Airbus Helicopters | 972 |
3 |
| Nippon Telegraph and Telephone Corporation | 17381 |
3 |
| Arizona Board of Regents on behalf of Arizona State University | 2663 |
2 |
| SZ DJI Technology Co., Ltd | 6857 |
2 |
| Ucal Fuel Systems Ltd | 11 |
2 |
| ZIPH20, A company organized under the laws of France | 8 |
2 |
| Pterodynamics Inc | 6 |
2 |
| SG Investment America, Inc. | 63 |
2 |
| Salt River Project | 2 |
2 |
| The Boeing Company | 20124 |
1 |
| Fujitsu Limited | 18388 |
1 |
| The United States of America as represented by the Secretary of the Navy | 2776 |
1 |
| Rakuten, Inc. | 1031 |
1 |
| Aeromarine Innovations Inc. | 6 |
1 |
| AeroMobil, s.r.o. | 13 |
1 |
| Autres propriétaires | 24 |