- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 5/30 - Fixing blades to rotors; Blade roots
Patent holdings for IPC class F01D 5/30
Total number of patents in this class: 1956
10-year publication summary
|
210
|
244
|
169
|
170
|
138
|
145
|
104
|
71
|
78
|
25
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
294 |
| Safran Aircraft Engines | 5739 |
231 |
| General Electric Company | 18133 |
142 |
| GE Infrastructure Technology, LLC | 5873 |
134 |
| Siemens AG | 24990 |
104 |
| United Technologies Corporation | 2328 |
80 |
| Rolls-Royce PLC | 2944 |
73 |
| SNECMA S.A. | 1160 |
67 |
| Pratt & Whitney Canada Corp. | 4215 |
62 |
| Rolls-Royce Corporation | 1686 |
57 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
52 |
| Snecma | 1065 |
50 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
46 |
| MTU Aero Engines GmbH | 565 |
45 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
38 |
| MTU Aero Engines AG | 622 |
26 |
| Solar Turbines Incorporated | 452 |
24 |
| Honeywell International Inc. | 13799 |
23 |
| Siemens Energy, Inc. | 1770 |
22 |
| Mitsubishi Power, Ltd. | 1680 |
22 |
| Other owners | 364 |