- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 5/30 - Fixing blades to rotorsBlade roots
Patent holdings for IPC class F01D 5/30
Total number of patents in this class: 2046
10-year publication summary
|
235
|
161
|
167
|
135
|
138
|
100
|
68
|
80
|
102
|
39
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9410 |
304 |
| Safran Aircraft Engines | 6294 |
260 |
| General Electric Company | 13810 |
156 |
| GE Infrastructure Technology, LLC | 6233 |
139 |
| Siemens AG | 24453 |
101 |
| Rolls-Royce PLC | 3107 |
75 |
| United Technologies Corporation | 2242 |
74 |
| Pratt & Whitney Canada Corp. | 4793 |
70 |
| SNECMA S.A. | 1148 |
67 |
| Rolls-Royce Corporation | 1739 |
57 |
| Siemens Energy Global GmbH & Co. KG | 2978 |
57 |
| Rolls-Royce North American Technologies, Inc. | 1169 |
52 |
| Snecma | 1064 |
50 |
| MTU Aero Engines GmbH | 502 |
40 |
| Doosan Heavy Industries & Construction Co., Ltd. | 581 |
38 |
| MTU Aero Engines AG | 683 |
29 |
| Solar Turbines Incorporated | 481 |
24 |
| Siemens Energy, Inc. | 1713 |
22 |
| Mitsubishi Power, Ltd. | 1772 |
22 |
| Honeywell International Inc. | 13540 |
21 |
| Other owners | 388 |