- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/22 - Lubricating arrangements using working fluid or other gaseous fluid as lubricant
Patent holdings for IPC class F01D 25/22
Total number of patents in this class: 122
10-year publication summary
|
15
|
16
|
17
|
20
|
13
|
9
|
5
|
7
|
1
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 18133 |
21 |
| Rtx Corporation | 8674 |
13 |
| Stein Seal Company | 69 |
12 |
| Nuovo Pignone Tecnologie S.r.l. | 789 |
8 |
| Robert Bosch GmbH | 40953 |
5 |
| Safran Aircraft Engines | 5739 |
4 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
4 |
| Siemens AG | 24990 |
3 |
| Echogen Power Systems, LLC | 63 |
3 |
| Florida Turbine Technologies, Inc. | 132 |
3 |
| GE Infrastructure Technology, LLC | 5873 |
3 |
| Daimler AG | 3462 |
2 |
| ABB Turbo Systems AG | 110 |
2 |
| BorgWarner Inc. | 2604 |
2 |
| Climeon AB | 38 |
2 |
| Turbomeca | 232 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Airbus Helicopters | 984 |
1 |
| Hamilton Sundstrand Corporation | 4525 |
1 |
| NTN Corporation | 5008 |
1 |
| Other owners | 29 |