- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 11/00 - Propellers, e.g. of ducted typeFeatures common to propellers and rotors for rotorcraft
Patent holdings for IPC class B64C 11/00
Total number of patents in this class: 737
10-year publication summary
|
62
|
70
|
72
|
77
|
82
|
85
|
102
|
75
|
54
|
34
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2318 |
67 |
| Safran Aircraft Engines | 6287 |
41 |
| General Electric Company | 13808 |
24 |
| Amazon Technologies, Inc. | 26741 |
21 |
| AeroVironment, Inc. | 534 |
17 |
| SZ DJI Technology Co., Ltd | 6850 |
17 |
| The Boeing Company | 20057 |
16 |
| Pratt & Whitney Canada Corp. | 4765 |
14 |
| Northrop Grumman Systems Corporation | 2934 |
14 |
| Airbus Helicopters Deutschland GmbH | 329 |
13 |
| Lilium eAircraft GmbH | 87 |
13 |
| Rolls-Royce PLC | 3104 |
11 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2743 |
11 |
| Lord Corporation | 471 |
11 |
| Airbus Helicopters | 971 |
9 |
| Bell Helicopter Textron Inc. | 1049 |
9 |
| GE Infrastructure Technology, LLC | 6228 |
9 |
| Hamilton Sundstrand Corporation | 4888 |
8 |
| Rolls-Royce Corporation | 1736 |
7 |
| Vestas Wind Systems A/S | 3681 |
7 |
| Other owners | 398 |