- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 27/08 - Helicopters with two or more rotors
Patent holdings for IPC class B64C 27/08
Total number of patents in this class: 1656
10-year publication summary
|
289
|
296
|
279
|
222
|
195
|
172
|
125
|
55
|
35
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SZ DJI Technology Co., Ltd | 6949 |
192 |
| Kitty Hawk Corporation | 306 |
56 |
| Nileworks Inc. | 141 |
50 |
| PRODRONE Co., Ltd. | 77 |
44 |
| Amazon Technologies, Inc. | 28373 |
40 |
| Textron Innovations Inc. | 2554 |
35 |
| Autel Robotics Co. Ltd. | 1092 |
33 |
| Aeronext Inc. | 206 |
30 |
| Panasonic Intellectual Property Management Co., Ltd. | 34724 |
25 |
| Hood Technology Corporation | 52 |
22 |
| Sikorsky Aircraft Corporation | 1059 |
22 |
| Honda Motor Co., Ltd. | 26702 |
19 |
| Denso Corporation | 25936 |
19 |
| HangZhou Zero Zero Technology Co., Ltd. | 85 |
14 |
| Ishikawa Energy Research Co., Ltd. | 109 |
14 |
| Sony Corporation | 29841 |
13 |
| Samsung Electronics Co., Ltd. | 159978 |
12 |
| Kubota Corporation | 4483 |
12 |
| Volocopter Technologies GmbH | 97 |
11 |
| Korea Aerospace Research Institute | 328 |
10 |
| Other owners | 983 |