- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F03B - Machines or engines for liquids
- F03B 3/12 - BladesBlade-carrying rotors
Patent holdings for IPC class F03B 3/12
Total number of patents in this class: 539
10-year publication summary
|
26
|
34
|
41
|
42
|
29
|
30
|
25
|
24
|
25
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2778 |
35 |
| GE Infrastructure Technology, LLC | 6212 |
26 |
| GE Renewable Technologies | 112 |
25 |
| Rtx Corporation | 9875 |
12 |
| Toshiba Corporation | 12691 |
9 |
| Oceana Energy Company | 29 |
9 |
| Natel Energy Holdings, Inc. | 16 |
9 |
| General Electric Company | 13831 |
8 |
| Alstom Renewable Technologies | 72 |
8 |
| Safran Aircraft Engines | 6539 |
8 |
| Andritz Hydro Ltd. | 8 |
7 |
| Alstom Hydro France | 38 |
6 |
| Dynavec AS | 17 |
6 |
| NTN Corporation | 4933 |
5 |
| Andritz Hydro GmbH | 70 |
5 |
| Hydrokinetic Energy Corp | 9 |
5 |
| LM Glasfiber A/S | 135 |
5 |
| FloDesign Wind Turbine Corp. | 37 |
4 |
| Gurit (UK) Ltd. | 108 |
4 |
| Pratt & Whitney Canada Corp. | 5223 |
3 |
| Other owners | 340 |