- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 914
10-year publication summary
|
98
|
108
|
88
|
91
|
81
|
52
|
47
|
36
|
30
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Infrastructure Technology, LLC | 5873 |
127 |
| Rtx Corporation | 8674 |
96 |
| General Electric Company | 18133 |
73 |
| Safran Aircraft Engines | 5739 |
70 |
| Siemens AG | 24990 |
35 |
| MTU Aero Engines AG | 622 |
27 |
| Mitsubishi Power, Ltd. | 1680 |
26 |
| Rolls-Royce Corporation | 1686 |
25 |
| MTU Aero Engines GmbH | 565 |
23 |
| United Technologies Corporation | 2328 |
22 |
| Siemens Energy, Inc. | 1770 |
21 |
| Pratt & Whitney Canada Corp. | 4215 |
19 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
17 |
| Alstom Technology Ltd | 1196 |
16 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
16 |
| Rolls-Royce PLC | 2944 |
15 |
| Snecma | 1065 |
14 |
| SNECMA S.A. | 1160 |
13 |
| General Electric Technology GmbH | 1657 |
13 |
| Honeywell International Inc. | 13799 |
12 |
| Other owners | 234 |