- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F03B - Machines or engines for liquids
- F03B 3/12 - Blades; Blade-carrying rotors
Patent holdings for IPC class F03B 3/12
Total number of patents in this class: 557
10-year publication summary
|
46
|
63
|
34
|
38
|
47
|
46
|
32
|
35
|
26
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2727 |
33 |
| GE Infrastructure Technology, LLC | 5873 |
27 |
| GE Renewable Technologies | 122 |
26 |
| General Electric Company | 18133 |
17 |
| Rtx Corporation | 8674 |
14 |
| Oceana Energy Company | 34 |
12 |
| Toshiba Corporation | 12017 |
9 |
| Alstom Renewable Technologies | 76 |
8 |
| Andritz Hydro Ltd. | 8 |
7 |
| Alstom Hydro France | 38 |
6 |
| Dynavec AS | 17 |
6 |
| Safran Aircraft Engines | 5739 |
6 |
| Rolls-Royce PLC | 2944 |
5 |
| NTN Corporation | 5008 |
5 |
| Andritz Hydro GmbH | 65 |
5 |
| Teral Inc. | 14 |
5 |
| LM Glasfiber A/S | 175 |
5 |
| Vestas Wind Systems A/S | 3459 |
5 |
| FloDesign Wind Turbine Corp. | 47 |
4 |
| Gurit (UK) Ltd. | 103 |
4 |
| Other owners | 348 |