- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 27/32 - Rotors
Patent holdings for IPC class B64C 27/32
Total number of patents in this class: 497
10-year publication summary
|
85
|
54
|
50
|
53
|
44
|
42
|
36
|
29
|
21
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sikorsky Aircraft Corporation | 1069 |
51 |
| Textron Innovations Inc. | 2436 |
51 |
| SZ DJI Technology Co., Ltd | 6932 |
41 |
| Bell Helicopter Textron Inc. | 962 |
36 |
| Hood Technology Corporation | 53 |
21 |
| Airbus Helicopters | 950 |
18 |
| Skydio, Inc. | 518 |
14 |
| Autel Robotics Co. Ltd. | 1071 |
11 |
| MagLev Aero Inc. | 20 |
11 |
| Wisk Aero LLC | 280 |
10 |
| Honda Motor Co., Ltd. | 26008 |
9 |
| Lockheed Martin Corporation | 3260 |
9 |
| Amazon Technologies, Inc. | 28066 |
8 |
| The Boeing Company | 20160 |
7 |
| Eth Zurich | 1319 |
7 |
| Kitty Hawk Corporation | 304 |
5 |
| Leonardo S.p.A. | 699 |
5 |
| Skyworks Global Inc | 42 |
5 |
| Ehang Intelligent Equipment (Guangzhou) Co., Ltd. | 134 |
5 |
| Bell Textron Rhode Island Inc. | 69 |
5 |
| Other owners | 168 |