- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 5/34 - Rotor-blade aggregates of unitary construction
Patent holdings for IPC class F01D 5/34
Total number of patents in this class: 306
10-year publication summary
|
20
|
50
|
25
|
35
|
32
|
24
|
15
|
8
|
9
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
63 |
| MTU Aero Engines GmbH | 565 |
30 |
| Safran Aircraft Engines | 5739 |
27 |
| Pratt & Whitney Canada Corp. | 4215 |
17 |
| SNECMA S.A. | 1160 |
15 |
| Honeywell International Inc. | 13799 |
14 |
| Rolls-Royce PLC | 2944 |
13 |
| General Electric Company | 18133 |
11 |
| Rolls-Royce Corporation | 1686 |
10 |
| Snecma | 1065 |
10 |
| Rolls-Royce Deutschland Ltd & Co KG | 765 |
9 |
| MTU Aero Engines AG | 622 |
8 |
| IHI Corporation | 3268 |
6 |
| Siemens AG | 24990 |
5 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
5 |
| Florida Turbine Technologies, Inc. | 132 |
4 |
| Exergy S.p.A. | 25 |
3 |
| Intex Holdings Pty Ltd | 29 |
3 |
| United Technologies Corporation | 2328 |
2 |
| Hamilton Sundstrand Corporation | 4525 |
2 |
| Other owners | 49 |