- 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: 268
10-year publication summary
|
12
|
29
|
19
|
20
|
27
|
16
|
30
|
25
|
24
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6306 |
54 |
| General Electric Company | 13859 |
19 |
| Amazon Technologies, Inc. | 26938 |
10 |
| Rolls-Royce PLC | 3133 |
10 |
| The Boeing Company | 20124 |
9 |
| Textron Innovations Inc. | 2334 |
9 |
| Snecma | 1064 |
9 |
| CR Flight LLC | 26 |
7 |
| Hood Technology Corporation | 54 |
6 |
| Joby Aero, Inc. | 313 |
6 |
| Aergility Corporation | 7 |
6 |
| Rolls-Royce Corporation | 1760 |
5 |
| Airbus Operations S.A.S. | 2491 |
4 |
| Bell Helicopter Textron Inc. | 1061 |
4 |
| SAFRAN S.A. | 626 |
3 |
| SNECMA S.A. | 1148 |
3 |
| Northrop Grumman Systems Corporation | 2935 |
3 |
| United States of America AS represented by The Administrator of NASA | 439 |
3 |
| Supernal LLC, AKA Supernal | 102 |
3 |
| Vertical Aerospace Group Ltd | 12 |
3 |
| Other owners | 92 |