- All sections
- B - Performing operationstransporting
- B64C - Aeroplaneshelicopters
- B64C 11/30 - Blade pitch-changing mechanisms
Patent holdings for IPC class B64C 11/30
Total number of patents in this class: 514
10-year publication summary
|
50
|
55
|
50
|
61
|
41
|
42
|
29
|
43
|
34
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 5584 |
108 |
| Safran Aircraft Engines | 6777 |
85 |
| General Electric Company | 13999 |
21 |
| Textron Innovations Inc. | 2543 |
17 |
| Snecma | 1057 |
15 |
| Rolls-Royce PLC | 3229 |
14 |
| Sikorsky Aircraft Corporation | 1059 |
13 |
| Archer Aviation Inc. | 421 |
13 |
| SNECMA S.A. | 1145 |
11 |
| The Boeing Company | 20212 |
11 |
| Hamilton Sundstrand Corporation | 5013 |
11 |
| GE Avio S.r.l. | 347 |
9 |
| Ratier-figeac SAS | 204 |
9 |
| Amazon Technologies, Inc. | 28299 |
8 |
| Bell Helicopter Textron Inc. | 956 |
8 |
| GE Aviation Systems Limited | 284 |
8 |
| Airbus Operations S.A.S. | 2581 |
6 |
| Airbus Helicopters | 954 |
6 |
| Honda Motor Co., Ltd. | 26594 |
4 |
| Airbus Helicopters Deutschland GmbH | 337 |
4 |
| Other owners | 133 |