- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 27/06 - Helicopters with single rotor
Patent holdings for IPC class B64C 27/06
Total number of patents in this class: 221
10-year publication summary
|
35
|
36
|
23
|
33
|
27
|
26
|
14
|
9
|
6
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Textron Innovations Inc. | 2528 |
41 |
| Sikorsky Aircraft Corporation | 1066 |
25 |
| Airbus Helicopters | 952 |
19 |
| Bell Helicopter Textron Inc. | 959 |
16 |
| Airbus Helicopters Deutschland GmbH | 330 |
13 |
| Lockheed Martin Corporation | 3256 |
10 |
| Safran Helicopter Engines | 847 |
9 |
| ETAK Systems, LLC | 74 |
7 |
| The Boeing Company | 20168 |
4 |
| Leonardo S.p.A. | 698 |
4 |
| Bell Textron Rhode Island Inc. | 69 |
4 |
| Hill Group Technologies Limited | 15 |
4 |
| Pratt & Whitney Canada Corp. | 5511 |
3 |
| AeroVironment, Inc. | 580 |
3 |
| Bell Textron Inc. | 67 |
3 |
| Roze Mobility | 3 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9152 |
2 |
| Bell Helicopter Rhode Island, Inc. | 47 |
2 |
| Politecnico di Milano | 898 |
2 |
| PRODRONE Co., Ltd. | 77 |
2 |
| Other owners | 45 |