- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 11/24 - Actively adjusting tip-clearance by selectively cooling or heating stator or rotor components
Patent holdings for IPC class F01D 11/24
Total number of patents in this class: 496
10-year publication summary
|
56
|
55
|
46
|
29
|
33
|
13
|
21
|
19
|
13
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9811 |
86 |
| Safran Aircraft Engines | 6503 |
81 |
| General Electric Company | 13815 |
65 |
| GE Infrastructure Technology, LLC | 6212 |
43 |
| Rolls-Royce PLC | 3177 |
25 |
| Pratt & Whitney Canada Corp. | 5184 |
21 |
| Rolls-Royce Corporation | 1690 |
21 |
| Rolls-Royce North American Technologies, Inc. | 1143 |
19 |
| Siemens AG | 24299 |
14 |
| Mitsubishi Power, Ltd. | 1820 |
13 |
| SNECMA S.A. | 1148 |
10 |
| Siemens Energy Global GmbH & Co. KG | 3222 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 9002 |
8 |
| Snecma | 1059 |
8 |
| Siemens Energy, Inc. | 1698 |
6 |
| Ansaldo Energia Switzerland AG | 270 |
4 |
| GE Avio S.r.l. | 312 |
4 |
| Rolls-Royce Deutschland Ltd & Co KG | 837 |
4 |
| United Technologies Corporation | 2220 |
3 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
3 |
| Other owners | 48 |