- 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: 516
10-year publication summary
|
65
|
58
|
49
|
33
|
34
|
13
|
23
|
21
|
14
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10102 |
98 |
| Safran Aircraft Engines | 6694 |
82 |
| General Electric Company | 13899 |
68 |
| GE Infrastructure Technology, LLC | 6171 |
44 |
| Rolls-Royce PLC | 3221 |
25 |
| Pratt & Whitney Canada Corp. | 5479 |
21 |
| Rolls-Royce Corporation | 1677 |
21 |
| Rolls-Royce North American Technologies, Inc. | 1129 |
19 |
| Siemens AG | 24029 |
14 |
| Mitsubishi Power, Ltd. | 1833 |
13 |
| SNECMA S.A. | 1146 |
10 |
| Siemens Energy Global GmbH & Co. KG | 3345 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
8 |
| Snecma | 1058 |
8 |
| Siemens Energy, Inc. | 1685 |
6 |
| GE Avio S.r.l. | 334 |
6 |
| Ansaldo Energia Switzerland AG | 270 |
4 |
| Rolls-Royce Deutschland Ltd & Co KG | 858 |
4 |
| Nuovo Pignone Tecnologie S.r.l. | 1216 |
4 |
| United Technologies Corporation | 2220 |
3 |
| Other owners | 48 |