- All sections
- B - Performing operations; transporting
- B64C - Aeroplanes; helicopters
- B64C 3/18 - Spars; Ribs; Stringers
Patent holdings for IPC class B64C 3/18
Total number of patents in this class: 784
10-year publication summary
|
44
|
69
|
65
|
63
|
89
|
108
|
90
|
72
|
49
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 19843 |
254 |
| Airbus Operations Limited | 1157 |
106 |
| Airbus Operations GmbH | 3188 |
48 |
| Airbus Operations S.L. | 511 |
36 |
| Airbus Operations S.A.S. | 2407 |
21 |
| Textron Innovations Inc. | 2138 |
18 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
17 |
| Bell Helicopter Textron Inc. | 1122 |
14 |
| Airbus UK Limited | 97 |
13 |
| Leonardo S.p.A. | 605 |
12 |
| Gulfstream Aerospace Corporation | 658 |
11 |
| Mitsubishi Aircraft Corporation | 197 |
11 |
| Airbus S.A.S. | 819 |
8 |
| AeroVironment, Inc. | 499 |
7 |
| Saab AB | 814 |
7 |
| Spirit AeroSystems, Inc. | 258 |
7 |
| Northrop Grumman Systems Corporation | 2940 |
6 |
| Continuous Composites Inc. | 201 |
6 |
| GKN Aerospace Services Limited | 129 |
5 |
| Otto Aviation Group | 6 |
5 |
| Other owners | 172 |