- 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: 257
10-year publication summary
|
29
|
21
|
25
|
19
|
18
|
15
|
9
|
13
|
6
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sikorsky Aircraft Corporation | 1069 |
46 |
| Textron Innovations Inc. | 2436 |
20 |
| Pratt & Whitney Canada Corp. | 5472 |
13 |
| Bell Helicopter Textron Inc. | 962 |
13 |
| Amazon Technologies, Inc. | 28066 |
11 |
| The Boeing Company | 20160 |
10 |
| Airbus Helicopters | 950 |
10 |
| GE Infrastructure Technology, LLC | 6171 |
9 |
| Lockheed Martin Corporation | 3260 |
8 |
| Leonardo S.p.A. | 699 |
6 |
| SZ DJI Technology Co., Ltd | 6932 |
5 |
| Wing Aviation LLC | 564 |
5 |
| Rtx Corporation | 10082 |
4 |
| Karem Aircraft, Inc. | 36 |
3 |
| Safran Aircraft Engines | 6671 |
3 |
| Vestas Wind Systems A/S | 3796 |
3 |
| Leonardo UK Ltd | 138 |
3 |
| General Electric Company | 13888 |
2 |
| United Technologies Corporation | 2220 |
2 |
| Northrop Grumman Systems Corporation | 2921 |
2 |
| Other owners | 79 |