- All sections
- B - Performing operations; transporting
- 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: 1090
10-year publication summary
|
98
|
112
|
86
|
86
|
110
|
122
|
93
|
82
|
44
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vestas Wind Systems A/S | 3459 |
119 |
| Safran Aircraft Engines | 5739 |
107 |
| LM WP Patent Holding A/S | 262 |
62 |
| GE Infrastructure Technology, LLC | 5873 |
56 |
| Siemens Gamesa Renewable Energy A/S | 1647 |
54 |
| General Electric Company | 18133 |
41 |
| LM Wind Power A/S | 233 |
38 |
| TPI Composites, Inc. | 99 |
34 |
| Rtx Corporation | 8674 |
26 |
| Rolls-Royce PLC | 2944 |
22 |
| Textron Innovations Inc. | 2138 |
20 |
| Blade Dynamics Limited | 133 |
18 |
| LM Wind Power International Technology II ApS | 70 |
18 |
| SAFRAN S.A. | 518 |
17 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
16 |
| The Boeing Company | 19843 |
15 |
| Bell Helicopter Textron Inc. | 1122 |
15 |
| Wobben Properties GmbH | 1207 |
15 |
| LM Wind Power US Technology ApS | 60 |
15 |
| Senvion GmbH | 98 |
13 |
| Other owners | 369 |