- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 11/46 - Arrangements of, or constructional features peculiar to, multiple propellers
Patent holdings for IPC class B64C 11/46
Total number of patents in this class: 246
10-year publication summary
|
15
|
30
|
38
|
49
|
31
|
33
|
15
|
21
|
12
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2534 |
27 |
| Kitty Hawk Corporation | 304 |
26 |
| General Electric Company | 13915 |
18 |
| Amazon Technologies, Inc. | 28193 |
17 |
| Archer Aviation Inc. | 408 |
11 |
| Joby Aero, Inc. | 376 |
10 |
| AeroVironment, Inc. | 580 |
6 |
| ST Engineering Aerospace Ltd. | 39 |
5 |
| Ampaire, Inc. | 51 |
4 |
| Airbus Operations S.A.S. | 2566 |
3 |
| Airbus Helicopters Deutschland GmbH | 332 |
3 |
| Arizona Board of Regents on behalf of Arizona State University | 2962 |
3 |
| Bell Helicopter Textron Inc. | 958 |
3 |
| United States of America AS represented by The Administrator of NASA | 477 |
3 |
| Shanghai Autoflight Co., Ltd. | 56 |
3 |
| Knightwerx Inc. | 19 |
3 |
| Pratt & Whitney Canada Corp. | 5517 |
2 |
| Airbus Helicopters | 952 |
2 |
| Lockheed Martin Corporation | 3255 |
2 |
| California Institute of Technology | 4036 |
2 |
| Other owners | 93 |