- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 27/43 - Rotors having articulated joints with flapping hinge or universal joint, common to the blades see-saw type, i.e. two-bladed rotor
Patent holdings for IPC class B64C 27/43
Total number of patents in this class: 18
10-year publication summary
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1
|
1
|
5
|
1
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0
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1
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2
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3
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1
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bell Helicopter Textron Inc. | 1052 |
2 |
| Textron Innovations Inc. | 2295 |
2 |
| Beta Air, LLC | 599 |
2 |
| Airbus Defence and Space GmbH | 868 |
1 |
| Hutchinson | 469 |
1 |
| The University of Queensland | 659 |
1 |
| Innostar | 9 |
1 |
| Laflamme Aero Inc. | 4 |
1 |
| Evodrone | 3 |
1 |
| Houwa Chuuki Co., Ltd. | 1 |
1 |
| Silverlit Toys, Inc. | 4 |
1 |
| Flynow Aviation GmbH | 5 |
1 |
| Swissdrones Operating AG | 2 |
1 |
| Tensor AG | 7 |
1 |
| Shift Dynamics Inc. | 1 |
1 |
| Other owners | 0 |