- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 5/32 - Locking, e.g. by final locking-blades or keys
Patent holdings for IPC class F01D 5/32
Total number of patents in this class: 376
10-year publication summary
|
42
|
28
|
36
|
19
|
17
|
16
|
16
|
12
|
20
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 6316 |
56 |
| Rtx Corporation | 9461 |
46 |
| General Electric Company | 13858 |
33 |
| GE Infrastructure Technology, LLC | 6250 |
33 |
| Siemens AG | 24352 |
26 |
| Siemens Energy Global GmbH & Co. KG | 3026 |
22 |
| SNECMA S.A. | 1148 |
16 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
16 |
| Rolls-Royce PLC | 3134 |
13 |
| Rolls-Royce North American Technologies, Inc. | 1170 |
10 |
| Snecma | 1064 |
8 |
| United Technologies Corporation | 2241 |
7 |
| Rolls-Royce Corporation | 1760 |
7 |
| Siemens Energy, Inc. | 1708 |
6 |
| Mitsubishi Power, Ltd. | 1788 |
6 |
| Doosan Enerbility Co., Ltd. | 240 |
5 |
| Pratt & Whitney Canada Corp. | 4834 |
4 |
| MTU Aero Engines AG | 691 |
4 |
| Safran Helicopter Engines | 768 |
4 |
| Nuovo Pignone Tecnologie S.r.l. | 1004 |
4 |
| Other owners | 50 |