- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/18 - Lubricating arrangements
Patent holdings for IPC class F01D 25/18
Total number of patents in this class: 1620
10-year publication summary
|
175
|
150
|
202
|
162
|
137
|
113
|
98
|
88
|
65
|
31
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9288 |
347 |
| Safran Aircraft Engines | 6216 |
208 |
| Pratt & Whitney Canada Corp. | 4518 |
171 |
| General Electric Company | 13816 |
77 |
| BorgWarner Inc. | 2608 |
46 |
| Safran Transmission Systems | 300 |
44 |
| Rolls-Royce PLC | 3027 |
41 |
| Rolls-Royce Corporation | 1723 |
41 |
| United Technologies Corporation | 2247 |
40 |
| Rolls-Royce Deutschland Ltd & Co KG | 807 |
38 |
| IHI Corporation | 3402 |
31 |
| Safran Helicopter Engines | 743 |
26 |
| Snecma | 1065 |
26 |
| SNECMA S.A. | 1145 |
22 |
| Hamilton Sundstrand Corporation | 4824 |
20 |
| GE Avio S.r.l. | 265 |
17 |
| JPMorgan Chase Bank, National Association | 8519 |
14 |
| Safran Aero Boosters SA | 182 |
14 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 766 |
14 |
| Rolls-Royce North American Technologies, Inc. | 1159 |
13 |
| Other owners | 370 |