- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 5/22 - Blade-to-blade connections, e.g. by shrouding
Patent holdings for IPC class F01D 5/22
Total number of patents in this class: 923
10-year publication summary
|
108
|
88
|
91
|
81
|
52
|
47
|
37
|
34
|
25
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Infrastructure Technology, LLC | 6196 |
128 |
| Rtx Corporation | 9313 |
96 |
| Safran Aircraft Engines | 6250 |
78 |
| General Electric Company | 13830 |
74 |
| Siemens AG | 24547 |
35 |
| MTU Aero Engines AG | 671 |
27 |
| Rolls-Royce Corporation | 1727 |
25 |
| Mitsubishi Power, Ltd. | 1758 |
24 |
| MTU Aero Engines GmbH | 509 |
23 |
| Siemens Energy, Inc. | 1691 |
21 |
| United Technologies Corporation | 2247 |
20 |
| Pratt & Whitney Canada Corp. | 4629 |
19 |
| Mitsubishi Heavy Industries, Ltd. | 8657 |
18 |
| Rolls-Royce North American Technologies, Inc. | 1162 |
16 |
| Rolls-Royce PLC | 3072 |
15 |
| Snecma | 1065 |
14 |
| SNECMA S.A. | 1145 |
13 |
| Honeywell International Inc. | 13562 |
13 |
| Nuovo Pignone Tecnologie S.r.l. | 950 |
12 |
| Alstom Technology Ltd | 1111 |
11 |
| Other owners | 241 |