- Sections
- B - Techniques industrielles; transports
- B64C - Aéroplanes; hélicoptères
- B64C 27/33 - Rotors comportant des bras qui peuvent fléchir
Détention brevets de la classe B64C 27/33
Brevets de cette classe: 111
Historique des publications depuis 10 ans
|
14
|
8
|
22
|
7
|
11
|
6
|
6
|
3
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Sikorsky Aircraft Corporation | 1150 |
32 |
| Textron Innovations Inc. | 2138 |
22 |
| Airbus Helicopters Deutschland GmbH | 324 |
15 |
| Bell Helicopter Textron Inc. | 1122 |
14 |
| Bell Textron Rhode Island Inc. | 124 |
5 |
| Lockheed Martin Corporation | 3406 |
3 |
| Bell Helicopter Rhode Island, Inc. | 54 |
3 |
| Kopter Group AG | 34 |
3 |
| The Boeing Company | 19843 |
2 |
| Airbus Helicopters | 984 |
1 |
| Massachusetts Institute of Technology | 9795 |
1 |
| Lord Corporation | 484 |
1 |
| Rohr, Inc. | 653 |
1 |
| Skydio, Inc. | 234 |
1 |
| The United States of America as represented by the Secretary of the Air Force | 754 |
1 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
1 |
| Kuzikov, Sergej Yurevich | 1 |
1 |
| Aeronext Inc. | 144 |
1 |
| Spear U.a.v Ltd | 8 |
1 |
| Jaunt Air Mobility, LLC | 10 |
1 |
| Autres propriétaires | 1 |