- 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: 1476
10-year publication summary
|
86
|
86
|
110
|
124
|
99
|
135
|
89
|
121
|
111
|
51
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6694 |
164 |
| Vestas Wind Systems A/S | 3796 |
141 |
| Siemens Gamesa Renewable Energy A/S | 1961 |
110 |
| GE Infrastructure Technology, LLC | 6171 |
61 |
| LM Windpower A/S | 220 |
60 |
| LM WP Patent Holding A/S | 234 |
58 |
| LM Wind Power A/S | 305 |
48 |
| General Electric Company | 13899 |
45 |
| TPI Composites, Inc. | 90 |
40 |
| SAFRAN S.A. | 791 |
37 |
| Blade Dynamics Limited | 133 |
31 |
| Rtx Corporation | 10102 |
31 |
| Rolls-Royce PLC | 3221 |
24 |
| Textron Innovations Inc. | 2444 |
22 |
| LM Wind Power International Technology II ApS | 91 |
19 |
| The Boeing Company | 20160 |
17 |
| Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | 339 |
17 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
16 |
| LM Wind Power US Technology ApS | 59 |
16 |
| Bell Helicopter Textron Inc. | 961 |
15 |
| Other owners | 504 |