- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/34 - Turning or inching gear
Patent holdings for IPC class F01D 25/34
Total number of patents in this class: 114
10-year publication summary
|
14
|
17
|
12
|
14
|
13
|
7
|
3
|
2
|
1
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9843 |
30 |
| General Electric Company | 13818 |
17 |
| Pratt & Whitney Canada Corp. | 5213 |
7 |
| Rolls-Royce PLC | 3178 |
7 |
| Hamilton Sundstrand Corporation | 5014 |
6 |
| Mitsubishi Heavy Industries Compressor Corporation | 634 |
6 |
| GE Infrastructure Technology, LLC | 6210 |
5 |
| Safran Aircraft Engines | 6523 |
4 |
| The Boeing Company | 20097 |
3 |
| Nuovo Pignone Tecnologie S.r.l. | 1138 |
3 |
| Siemens AG | 24240 |
2 |
| Rolls-Royce Deutschland Ltd & Co KG | 839 |
2 |
| Arabelle Solutions France | 153 |
2 |
| Honeywell International Inc. | 13044 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 9009 |
1 |
| Siemens Energy, Inc. | 1695 |
1 |
| MTU Aero Engines GmbH | 438 |
1 |
| Nuovo Pignone SRL | 202 |
1 |
| Parker-Hannifin Corporation | 1023 |
1 |
| Safran Helicopter Engines | 802 |
1 |
| Other owners | 13 |