- 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: 950
10-year publication summary
|
88
|
91
|
81
|
52
|
47
|
37
|
35
|
30
|
19
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Infrastructure Technology, LLC | 6155 |
130 |
| Rtx Corporation | 10182 |
95 |
| Safran Aircraft Engines | 6767 |
91 |
| General Electric Company | 13982 |
75 |
| Siemens AG | 23956 |
35 |
| MTU Aero Engines AG | 740 |
30 |
| Mitsubishi Power, Ltd. | 1836 |
24 |
| MTU Aero Engines GmbH | 408 |
23 |
| Rolls-Royce Corporation | 1681 |
23 |
| Pratt & Whitney Canada Corp. | 5531 |
21 |
| United Technologies Corporation | 2215 |
20 |
| Siemens Energy, Inc. | 1680 |
20 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
18 |
| Safran Ceramics | 450 |
17 |
| Rolls-Royce North American Technologies, Inc. | 1132 |
16 |
| Rolls-Royce PLC | 3224 |
14 |
| Snecma | 1057 |
14 |
| SNECMA S.A. | 1145 |
13 |
| Honeywell International Inc. | 12766 |
13 |
| Nuovo Pignone Tecnologie S.r.l. | 1229 |
12 |
| Other owners | 246 |