- 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: 229
10-year publication summary
|
9
|
15
|
30
|
38
|
49
|
31
|
33
|
16
|
18
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kitty Hawk Corporation | 299 |
24 |
| Textron Innovations Inc. | 2295 |
24 |
| Amazon Technologies, Inc. | 26528 |
17 |
| General Electric Company | 13838 |
16 |
| Joby Aero, Inc. | 300 |
8 |
| Archer Aviation Inc. | 216 |
8 |
| AeroVironment, Inc. | 533 |
6 |
| Bell Helicopter Textron Inc. | 1052 |
5 |
| ST Engineering Aerospace Ltd. | 38 |
5 |
| Ampaire, Inc. | 56 |
4 |
| Airbus Operations S.A.S. | 2473 |
3 |
| Airbus Helicopters Deutschland GmbH | 327 |
3 |
| Arizona Board of Regents on behalf of Arizona State University | 2592 |
3 |
| United States of America AS represented by The Administrator of NASA | 428 |
3 |
| Shanghai Autoflight Co., Ltd. | 55 |
3 |
| Knightwerx Inc. | 13 |
3 |
| Honda Motor Co., Ltd. | 25150 |
2 |
| Pratt & Whitney Canada Corp. | 4663 |
2 |
| Airbus Helicopters | 964 |
2 |
| Lockheed Martin Corporation | 3277 |
2 |
| Other owners | 86 |