- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 172
10-year publication summary
16
|
21
|
20
|
15
|
12
|
16
|
8
|
7
|
8
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rtx Corporation | 8674 |
38 |
General Electric Company | 18133 |
16 |
Rolls-Royce Corporation | 1686 |
15 |
Safran Aircraft Engines | 5739 |
14 |
GE Infrastructure Technology, LLC | 5873 |
11 |
Rolls-Royce North American Technologies, Inc. | 1079 |
9 |
Siemens AG | 24990 |
8 |
Rolls-Royce PLC | 2944 |
5 |
Pratt & Whitney Canada Corp. | 4215 |
4 |
Siemens Energy, Inc. | 1770 |
4 |
Ansaldo Energia Switzerland AG | 293 |
4 |
Siemens Energy Global GmbH & Co. KG | 2775 |
4 |
United Technologies Corporation | 2328 |
3 |
MTU Aero Engines AG | 622 |
3 |
MTU Aero Engines GmbH | 565 |
3 |
Nuovo Pignone Tecnologie S.r.l. | 789 |
3 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
Turbomeca | 232 |
2 |
General Electric Company Polska Sp. z o.o. | 43 |
2 |
Mitsubishi Power, Ltd. | 1680 |
2 |
Other owners | 20 |