- 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: 232
10-year publication summary
|
9
|
12
|
30
|
36
|
48
|
31
|
32
|
15
|
17
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2350 |
26 |
| Kitty Hawk Corporation | 301 |
25 |
| Amazon Technologies, Inc. | 27102 |
17 |
| General Electric Company | 13862 |
16 |
| Joby Aero, Inc. | 317 |
8 |
| Archer Aviation Inc. | 257 |
8 |
| AeroVironment, Inc. | 539 |
6 |
| ST Engineering Aerospace Ltd. | 38 |
5 |
| Ampaire, Inc. | 56 |
4 |
| Airbus Operations S.A.S. | 2501 |
3 |
| Airbus Helicopters Deutschland GmbH | 332 |
3 |
| Arizona Board of Regents on behalf of Arizona State University | 2696 |
3 |
| Bell Helicopter Textron Inc. | 1058 |
3 |
| United States of America AS represented by The Administrator of NASA | 444 |
3 |
| Shanghai Autoflight Co., Ltd. | 55 |
3 |
| Knightwerx Inc. | 16 |
3 |
| Pratt & Whitney Canada Corp. | 4858 |
2 |
| Airbus Helicopters | 973 |
2 |
| Lockheed Martin Corporation | 3271 |
2 |
| California Institute of Technology | 3988 |
2 |
| Other owners | 88 |