- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 11/18 - Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing by self-adjusting means using stator or rotor components with predetermined thermal response, e.g. selective insulation, thermal inertia, differential expansion
Patent holdings for IPC class F01D 11/18
Total number of patents in this class: 180
10-year publication summary
|
20
|
15
|
12
|
16
|
8
|
8
|
8
|
9
|
3
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10182 |
41 |
| General Electric Company | 13982 |
19 |
| Safran Aircraft Engines | 6767 |
15 |
| Rolls-Royce Corporation | 1681 |
13 |
| GE Infrastructure Technology, LLC | 6155 |
11 |
| Siemens AG | 23956 |
8 |
| Rolls-Royce North American Technologies, Inc. | 1132 |
8 |
| Pratt & Whitney Canada Corp. | 5531 |
6 |
| Nuovo Pignone Tecnologie S.r.l. | 1229 |
6 |
| Rolls-Royce PLC | 3224 |
4 |
| Siemens Energy, Inc. | 1680 |
4 |
| Ansaldo Energia Switzerland AG | 270 |
4 |
| Siemens Energy Global GmbH & Co. KG | 3470 |
4 |
| Honeywell International Inc. | 12766 |
3 |
| United Technologies Corporation | 2215 |
3 |
| MTU Aero Engines AG | 740 |
3 |
| MTU Aero Engines GmbH | 408 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
2 |
| Turbomeca | 199 |
2 |
| General Electric Company Polska Sp. z o.o. | 85 |
2 |
| Other owners | 19 |