- All sections
- B - Performing operations; transporting
- B64C - Aeroplanes; helicopters
- B64C 27/00 - Rotorcraft; Rotors peculiar thereto
Patent holdings for IPC class B64C 27/00
Total number of patents in this class: 1091
10-year publication summary
|
102
|
107
|
151
|
139
|
134
|
112
|
86
|
72
|
55
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2138 |
129 |
| Sikorsky Aircraft Corporation | 1150 |
105 |
| Bell Helicopter Textron Inc. | 1122 |
98 |
| Airbus Helicopters | 984 |
60 |
| Lord Corporation | 484 |
54 |
| The Boeing Company | 19843 |
35 |
| SZ DJI Technology Co., Ltd | 6791 |
34 |
| Leonardo S.p.A. | 605 |
33 |
| Airbus Helicopters Deutschland GmbH | 324 |
23 |
| Kitty Hawk Corporation | 279 |
23 |
| Hood Technology Corporation | 53 |
16 |
| Amazon Technologies, Inc. | 24422 |
11 |
| Honeywell International Inc. | 13799 |
9 |
| Lockheed Martin Corporation | 3406 |
9 |
| Skydio, Inc. | 234 |
9 |
| Moog Inc. | 424 |
8 |
| Safran Helicopter Engines | 676 |
8 |
| Merlin Technology, Inc. | 165 |
7 |
| MagLev Aero Inc. | 13 |
7 |
| GE Infrastructure Technology, LLC | 5873 |
6 |
| Other owners | 407 |