- 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: 480
10-year publication summary
|
53
|
65
|
58
|
49
|
33
|
34
|
13
|
22
|
16
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9226 |
81 |
| Safran Aircraft Engines | 6142 |
79 |
| General Electric Company | 17074 |
57 |
| GE Infrastructure Technology, LLC | 6153 |
43 |
| Rolls-Royce PLC | 3007 |
26 |
| Rolls-Royce Corporation | 1718 |
21 |
| Pratt & Whitney Canada Corp. | 4454 |
20 |
| Rolls-Royce North American Technologies, Inc. | 1152 |
20 |
| Siemens AG | 24577 |
14 |
| Mitsubishi Power, Ltd. | 1747 |
13 |
| SNECMA S.A. | 1145 |
10 |
| Siemens Energy Global GmbH & Co. KG | 2863 |
9 |
| Snecma | 1065 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 8569 |
7 |
| Siemens Energy, Inc. | 1699 |
6 |
| Ansaldo Energia Switzerland AG | 278 |
4 |
| MTU Aero Engines GmbH | 508 |
4 |
| Rolls-Royce Deutschland Ltd & Co KG | 802 |
4 |
| United Technologies Corporation | 2249 |
3 |
| GE Avio S.r.l. | 258 |
3 |
| Other owners | 48 |