- All sections
- B - Performing operations; transporting
- B64D - Equipment for fitting in or to aircraft; flight suits; parachutes; arrangements or mounting of power plants or propulsion transmissions in aircraft
- B64D 31/12 - Initiating means actuated automatically for equalising or synchronising power plants
Patent holdings for IPC class B64D 31/12
Total number of patents in this class: 120
10-year publication summary
9
|
13
|
5
|
16
|
10
|
12
|
18
|
10
|
13
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Pratt & Whitney Canada Corp. | 4215 |
18 |
Airbus Helicopters | 984 |
10 |
Rtx Corporation | 8674 |
9 |
Bombardier Inc. | 749 |
8 |
Safran Helicopter Engines | 676 |
6 |
Beta Air, LLC | 539 |
6 |
General Electric Company | 18133 |
5 |
Kitty Hawk Corporation | 279 |
4 |
Rolls-Royce North American Technologies, Inc. | 1079 |
4 |
Honeywell International Inc. | 13799 |
3 |
Safran Aircraft Engines | 5739 |
3 |
Textron Innovations Inc. | 2138 |
3 |
Wing Aviation LLC | 390 |
3 |
SNECMA S.A. | 1160 |
2 |
Hyundai Motor Company | 19021 |
2 |
Electro Standards Laboratories | 25 |
2 |
Rolls-Royce Corporation | 1686 |
2 |
Sikorsky Aircraft Corporation | 1150 |
2 |
Safran Electrical & Power | 507 |
2 |
Airbus Operations | 169 |
2 |
Other owners | 24 |