- 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: 1261
10-year publication summary
|
112
|
86
|
86
|
110
|
124
|
97
|
120
|
66
|
107
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6039 |
129 |
| Vestas Wind Systems A/S | 3579 |
129 |
| Siemens Gamesa Renewable Energy A/S | 1803 |
81 |
| LM WP Patent Holding A/S | 262 |
63 |
| GE Infrastructure Technology, LLC | 6114 |
58 |
| LM Wind Power A/S | 261 |
44 |
| General Electric Company | 17789 |
42 |
| TPI Composites, Inc. | 94 |
39 |
| LM Windpower A/S | 160 |
33 |
| SAFRAN S.A. | 573 |
27 |
| Rtx Corporation | 9109 |
26 |
| Blade Dynamics Limited | 132 |
25 |
| Rolls-Royce PLC | 2989 |
23 |
| Textron Innovations Inc. | 2192 |
20 |
| LM Wind Power International Technology II ApS | 69 |
18 |
| Mitsubishi Heavy Industries, Ltd. | 8538 |
16 |
| The Boeing Company | 19911 |
15 |
| Bell Helicopter Textron Inc. | 1085 |
15 |
| Wobben Properties GmbH | 1212 |
15 |
| LM Wind Power US Technology ApS | 59 |
15 |
| Other owners | 428 |