- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 21/08 - Restoring position
Patent holdings for IPC class F01D 21/08
Total number of patents in this class: 28
10-year publication summary
|
2
|
5
|
6
|
0
|
1
|
1
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13818 |
8 |
| Safran Aircraft Engines | 6523 |
7 |
| Rolls-Royce PLC | 3178 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9009 |
2 |
| Snecma | 1058 |
2 |
| Siemens AG | 24240 |
1 |
| SNECMA S.A. | 1148 |
1 |
| Pratt & Whitney Canada Corp. | 5213 |
1 |
| Rolls-Royce North American Technologies, Inc. | 1133 |
1 |
| GE Infrastructure Technology, LLC | 6210 |
1 |
| Rtx Corporation | 9843 |
1 |
| Other owners | 0 |