- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 356
10-year publication summary
|
54
|
45
|
29
|
36
|
20
|
18
|
16
|
16
|
12
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 5739 |
51 |
| Rtx Corporation | 8674 |
43 |
| GE Infrastructure Technology, LLC | 5873 |
33 |
| General Electric Company | 18133 |
30 |
| Siemens AG | 24990 |
27 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
20 |
| SNECMA S.A. | 1160 |
16 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
16 |
| Rolls-Royce PLC | 2944 |
13 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
8 |
| Snecma | 1065 |
8 |
| United Technologies Corporation | 2328 |
7 |
| Siemens Energy, Inc. | 1770 |
7 |
| Rolls-Royce Corporation | 1686 |
7 |
| Mitsubishi Power, Ltd. | 1680 |
6 |
| Pratt & Whitney Canada Corp. | 4215 |
5 |
| MTU Aero Engines AG | 622 |
4 |
| Doosan Enerbility Co., Ltd. | 143 |
4 |
| Ansaldo Energia Switzerland AG | 293 |
3 |
| General Electric Technology GmbH | 1657 |
3 |
| Other owners | 45 |