- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 11/48 - Units of two or more coaxial propellers
Patent holdings for IPC class B64C 11/48
Total number of patents in this class: 292
10-year publication summary
|
33
|
20
|
20
|
30
|
18
|
31
|
27
|
27
|
21
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6704 |
57 |
| General Electric Company | 13910 |
31 |
| Amazon Technologies, Inc. | 28118 |
10 |
| Rolls-Royce PLC | 3223 |
10 |
| Textron Innovations Inc. | 2443 |
10 |
| Snecma | 1058 |
9 |
| The Boeing Company | 20163 |
8 |
| Joby Aero, Inc. | 374 |
7 |
| Hood Technology Corporation | 53 |
6 |
| Aergility Corporation | 7 |
6 |
| Rolls-Royce Corporation | 1677 |
5 |
| CR Flight LLC | 19 |
5 |
| Airbus Operations S.A.S. | 2556 |
4 |
| SNECMA S.A. | 1146 |
3 |
| Northrop Grumman Systems Corporation | 2913 |
3 |
| Bell Helicopter Textron Inc. | 961 |
3 |
| United States of America AS represented by The Administrator of NASA | 472 |
3 |
| Zipline International Inc. | 65 |
3 |
| Supernal LLC, AKA Supernal | 138 |
3 |
| MagLev Aero Inc. | 20 |
3 |
| Other owners | 103 |