- All sections
- B - Performing operations; transporting
- B64C - Aeroplanes; helicopters
- B64C 25/28 - Control or locking systems therefor with indicating or warning devices
Patent holdings for IPC class B64C 25/28
Total number of patents in this class: 67
10-year publication summary
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3
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4
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5
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5
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6
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9
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8
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7
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8
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2
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Airbus Operations Limited | 1157 |
13 |
| Safran Landing Systems | 621 |
10 |
| The Boeing Company | 19843 |
5 |
| Goodrich Corporation | 2081 |
5 |
| Airbus Operations S.A.S. | 2407 |
4 |
| Messier-Bugatti-Dowty | 243 |
4 |
| Safran Landing Systems Canada Inc. / Safran Systemes D'atterrissage Canada Inc. | 101 |
4 |
| Airbus S.A.S. | 819 |
2 |
| Airbus Helicopters | 984 |
2 |
| Messier-dowty Inc. | 22 |
2 |
| Triumph Aerospace Operations UK, Ltd | 2 |
2 |
| Raytheon Company | 8535 |
1 |
| Hyundai Motor Company | 19021 |
1 |
| Lockheed Martin Corporation | 3406 |
1 |
| Hamilton Sundstrand Corporation | 4525 |
1 |
| Boe Technology Group Co., Ltd. | 35384 |
1 |
| Atsumi Real Estate & Corporation, Inc. | 14 |
1 |
| Liebherr-Aerospace Lindenberg GmbH | 113 |
1 |
| Mitsubishi Aircraft Corporation | 197 |
1 |
| SkyFallX, LLC | 1 |
1 |
| Other owners | 5 |