- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 21/04 - Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like for blowing
Patent holdings for IPC class B64C 21/04
Total number of patents in this class: 195
10-year publication summary
|
14
|
26
|
21
|
19
|
19
|
21
|
13
|
9
|
12
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 20048 |
47 |
| Airbus Operations GmbH | 3333 |
27 |
| Jetoptera, Inc. | 92 |
20 |
| Textron Innovations Inc. | 2304 |
7 |
| Airbus Operations S.A.S. | 2471 |
6 |
| Airbus Defence and Space GmbH | 868 |
5 |
| Lockheed Martin Corporation | 3277 |
4 |
| BAE SYSTEMS plc | 2337 |
4 |
| Rtx Corporation | 9352 |
4 |
| General Electric Company | 13762 |
3 |
| Pratt & Whitney Canada Corp. | 4722 |
3 |
| Rolls-Royce PLC | 3088 |
3 |
| The Arizona Board of Regents on Behalf of the University of Arizona | 2153 |
3 |
| Rensselaer Polytechnic Institute | 822 |
3 |
| Sikorsky Aircraft Corporation | 1105 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8703 |
2 |
| Georgia Tech Research Corporation | 2729 |
2 |
| Forsvarets materielverk | 4 |
2 |
| Safran Aircraft Engines | 6271 |
2 |
| University of Miami | 832 |
2 |
| Other owners | 43 |