- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 11/20 - Constructional features
Patent holdings for IPC class B64C 11/20
Total number of patents in this class: 269
10-year publication summary
|
22
|
28
|
31
|
44
|
26
|
15
|
9
|
13
|
21
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6059 |
21 |
| Amazon Technologies, Inc. | 25944 |
19 |
| Bell Helicopter Textron Inc. | 1082 |
15 |
| SZ DJI Technology Co., Ltd | 6814 |
15 |
| The Boeing Company | 19915 |
14 |
| Ratier-figeac SAS | 182 |
12 |
| Textron Innovations Inc. | 2195 |
11 |
| SNECMA S.A. | 1150 |
7 |
| Sikorsky Aircraft Corporation | 1123 |
7 |
| Snecma | 1065 |
7 |
| Hamilton Sundstrand Corporation | 4737 |
6 |
| Northrop Grumman Systems Corporation | 2929 |
4 |
| AeroVironment, Inc. | 518 |
4 |
| Sharrow Engineering LLC | 41 |
4 |
| 3m Innovative Properties Company | 17969 |
3 |
| Airbus S.A.S. | 855 |
3 |
| Airbus Operations S.L. | 533 |
3 |
| Lockheed Martin Corporation | 3308 |
3 |
| IHI Corporation | 3366 |
3 |
| Skydio, Inc. | 378 |
3 |
| Other owners | 105 |