- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 27/46 - Blades
Patent holdings for IPC class B64C 27/46
Total number of patents in this class: 254
10-year publication summary
|
28
|
21
|
25
|
18
|
18
|
15
|
9
|
12
|
5
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sikorsky Aircraft Corporation | 1091 |
46 |
| Textron Innovations Inc. | 2374 |
20 |
| Bell Helicopter Textron Inc. | 1016 |
15 |
| Pratt & Whitney Canada Corp. | 4973 |
13 |
| Amazon Technologies, Inc. | 27338 |
11 |
| The Boeing Company | 20081 |
10 |
| Airbus Helicopters | 946 |
10 |
| GE Infrastructure Technology, LLC | 6200 |
9 |
| Lockheed Martin Corporation | 3290 |
8 |
| Leonardo S.p.A. | 678 |
6 |
| Wing Aviation LLC | 519 |
5 |
| SZ DJI Technology Co., Ltd | 6872 |
4 |
| Rtx Corporation | 9635 |
4 |
| Karem Aircraft, Inc. | 39 |
3 |
| Safran Aircraft Engines | 6437 |
3 |
| Vestas Wind Systems A/S | 3730 |
3 |
| Leonardo UK Ltd | 127 |
3 |
| General Electric Company | 13791 |
2 |
| United Technologies Corporation | 2226 |
2 |
| Northrop Grumman Systems Corporation | 2930 |
2 |
| Other owners | 75 |