- 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: 2072
10-year publication summary
|
169
|
170
|
138
|
145
|
104
|
72
|
80
|
106
|
58
|
50
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10127 |
307 |
| Safran Aircraft Engines | 6727 |
271 |
| General Electric Company | 13915 |
169 |
| GE Infrastructure Technology, LLC | 6159 |
137 |
| Siemens AG | 23996 |
98 |
| Pratt & Whitney Canada Corp. | 5517 |
82 |
| United Technologies Corporation | 2218 |
74 |
| Rolls-Royce PLC | 3224 |
72 |
| SNECMA S.A. | 1145 |
67 |
| Siemens Energy Global GmbH & Co. KG | 3432 |
58 |
| Rolls-Royce Corporation | 1680 |
56 |
| Rolls-Royce North American Technologies, Inc. | 1130 |
51 |
| Snecma | 1058 |
49 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
38 |
| MTU Aero Engines GmbH | 416 |
32 |
| MTU Aero Engines AG | 731 |
28 |
| Solar Turbines Incorporated | 513 |
24 |
| Mitsubishi Power, Ltd. | 1833 |
22 |
| Honeywell International Inc. | 12776 |
21 |
| Siemens Energy, Inc. | 1686 |
21 |
| Other owners | 395 |