- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 27/00 - RotorcraftRotors peculiar thereto
Patent holdings for IPC class B64C 27/00
Total number of patents in this class: 1103
10-year publication summary
|
107
|
151
|
139
|
134
|
113
|
85
|
73
|
60
|
43
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2233 |
134 |
| Sikorsky Aircraft Corporation | 1115 |
104 |
| Bell Helicopter Textron Inc. | 1058 |
96 |
| Airbus Helicopters | 963 |
56 |
| Lord Corporation | 470 |
52 |
| SZ DJI Technology Co., Ltd | 6827 |
35 |
| The Boeing Company | 19958 |
33 |
| Leonardo S.p.A. | 656 |
33 |
| Airbus Helicopters Deutschland GmbH | 325 |
25 |
| Kitty Hawk Corporation | 294 |
25 |
| Hood Technology Corporation | 54 |
16 |
| Amazon Technologies, Inc. | 26290 |
12 |
| Skydio, Inc. | 398 |
10 |
| Lockheed Martin Corporation | 3279 |
9 |
| Honeywell International Inc. | 13602 |
8 |
| Merlin Technology, Inc. | 160 |
8 |
| Safran Helicopter Engines | 740 |
8 |
| MagLev Aero Inc. | 18 |
8 |
| Moog Inc. | 415 |
7 |
| GE Infrastructure Technology, LLC | 6182 |
6 |
| Other owners | 418 |