- 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: 769
10-year publication summary
|
68
|
70
|
69
|
80
|
82
|
95
|
73
|
54
|
50
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2389 |
67 |
| Safran Aircraft Engines | 6509 |
44 |
| General Electric Company | 13809 |
26 |
| Amazon Technologies, Inc. | 27637 |
21 |
| Pratt & Whitney Canada Corp. | 5197 |
19 |
| AeroVironment, Inc. | 555 |
18 |
| SZ DJI Technology Co., Ltd | 6897 |
17 |
| The Boeing Company | 20102 |
16 |
| Northrop Grumman Systems Corporation | 2925 |
14 |
| Airbus Helicopters Deutschland GmbH | 324 |
13 |
| Lilium eAircraft GmbH | 53 |
12 |
| Rolls-Royce PLC | 3174 |
11 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2806 |
11 |
| Lord Corporation | 466 |
10 |
| Airbus Helicopters | 926 |
9 |
| GE Infrastructure Technology, LLC | 6214 |
9 |
| Whisper Aero Inc. | 72 |
9 |
| Hamilton Sundstrand Corporation | 5013 |
8 |
| Bell Helicopter Textron Inc. | 974 |
8 |
| Wisk Aero LLC | 258 |
8 |
| Other owners | 419 |