- 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: 498
10-year publication summary
|
56
|
55
|
46
|
29
|
33
|
13
|
21
|
19
|
13
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9851 |
88 |
| Safran Aircraft Engines | 6532 |
81 |
| General Electric Company | 13819 |
65 |
| GE Infrastructure Technology, LLC | 6213 |
43 |
| Rolls-Royce PLC | 3180 |
25 |
| Pratt & Whitney Canada Corp. | 5210 |
21 |
| Rolls-Royce Corporation | 1680 |
21 |
| Rolls-Royce North American Technologies, Inc. | 1133 |
19 |
| Siemens AG | 24236 |
14 |
| Mitsubishi Power, Ltd. | 1819 |
13 |
| SNECMA S.A. | 1148 |
10 |
| Siemens Energy Global GmbH & Co. KG | 3244 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 9016 |
8 |
| Snecma | 1058 |
8 |
| Siemens Energy, Inc. | 1694 |
6 |
| Ansaldo Energia Switzerland AG | 270 |
4 |
| GE Avio S.r.l. | 316 |
4 |
| Rolls-Royce Deutschland Ltd & Co KG | 840 |
4 |
| United Technologies Corporation | 2220 |
3 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
3 |
| Other owners | 48 |