- All sections
- B - Performing operations; transporting
- B64C - Aeroplanes; helicopters
- B64C 11/20 - Constructional features
Patent holdings for IPC class B64C 11/20
Total number of patents in this class: 257
10-year publication summary
|
21
|
22
|
28
|
31
|
44
|
25
|
15
|
10
|
13
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amazon Technologies, Inc. | 24422 |
19 |
| Safran Aircraft Engines | 5739 |
16 |
| Bell Helicopter Textron Inc. | 1122 |
15 |
| SZ DJI Technology Co., Ltd | 6791 |
15 |
| The Boeing Company | 19843 |
14 |
| Ratier-figeac SAS | 173 |
12 |
| Textron Innovations Inc. | 2138 |
11 |
| SNECMA S.A. | 1160 |
7 |
| Sikorsky Aircraft Corporation | 1150 |
7 |
| Snecma | 1065 |
7 |
| Hamilton Sundstrand Corporation | 4525 |
6 |
| Northrop Grumman Systems Corporation | 2940 |
4 |
| AeroVironment, Inc. | 499 |
4 |
| 3m Innovative Properties Company | 18406 |
3 |
| Airbus S.A.S. | 819 |
3 |
| Airbus Operations S.L. | 511 |
3 |
| Airbus Helicopters | 984 |
3 |
| Lockheed Martin Corporation | 3406 |
3 |
| GoPro, Inc. | 1915 |
3 |
| IHI Corporation | 3268 |
3 |
| Other owners | 99 |