- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 27/473 - Constructional features
Patent holdings for IPC class B64C 27/473
Total number of patents in this class: 436
10-year publication summary
|
68
|
46
|
43
|
46
|
39
|
24
|
21
|
30
|
13
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sikorsky Aircraft Corporation | 1063 |
77 |
| Textron Innovations Inc. | 2534 |
44 |
| Bell Helicopter Textron Inc. | 958 |
30 |
| The Boeing Company | 20186 |
20 |
| Airbus Helicopters | 952 |
19 |
| Lockheed Martin Corporation | 3255 |
15 |
| Amazon Technologies, Inc. | 28193 |
13 |
| Safran Aircraft Engines | 6727 |
9 |
| Airbus Helicopters Deutschland GmbH | 332 |
8 |
| MagLev Aero Inc. | 21 |
8 |
| SZ DJI Technology Co., Ltd | 6939 |
7 |
| Skyworks Global Inc | 42 |
7 |
| Pratt & Whitney Canada Corp. | 5517 |
6 |
| Northrop Grumman Systems Corporation | 2912 |
6 |
| Leonardo S.p.A. | 698 |
6 |
| Ratier-figeac SAS | 205 |
5 |
| Autel Robotics Co. Ltd. | 1076 |
5 |
| LM Wind Power A/S | 307 |
5 |
| 3m Innovative Properties Company | 17458 |
3 |
| AeroVironment, Inc. | 580 |
3 |
| Other owners | 140 |