- All sections
- B - Performing operationstransporting
- B29L - Indexing scheme associated with subclass , relating to particular articles
- B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
Patent holdings for IPC class B29L 31/08
Total number of patents in this class: 1396
10-year publication summary
|
112
|
86
|
86
|
110
|
124
|
99
|
133
|
79
|
116
|
101
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6317 |
152 |
| Vestas Wind Systems A/S | 3697 |
137 |
| Siemens Gamesa Renewable Energy A/S | 1900 |
100 |
| LM WP Patent Holding A/S | 260 |
64 |
| GE Infrastructure Technology, LLC | 6252 |
60 |
| LM Wind Power A/S | 282 |
46 |
| LM Windpower A/S | 174 |
45 |
| General Electric Company | 13859 |
43 |
| TPI Composites, Inc. | 94 |
40 |
| SAFRAN S.A. | 630 |
33 |
| Blade Dynamics Limited | 134 |
27 |
| Rtx Corporation | 9483 |
27 |
| Rolls-Royce PLC | 3137 |
24 |
| Textron Innovations Inc. | 2343 |
21 |
| LM Wind Power International Technology II ApS | 93 |
19 |
| Mitsubishi Heavy Industries, Ltd. | 8813 |
16 |
| LM Wind Power US Technology ApS | 59 |
16 |
| Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | 331 |
16 |
| The Boeing Company | 20139 |
15 |
| Bell Helicopter Textron Inc. | 1060 |
15 |
| Other owners | 480 |