- 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: 1724
10-year publication summary
|
150
|
202
|
162
|
137
|
113
|
98
|
92
|
70
|
99
|
64
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10182 |
345 |
| Safran Aircraft Engines | 6767 |
238 |
| Pratt & Whitney Canada Corp. | 5531 |
209 |
| General Electric Company | 13982 |
93 |
| Safran Transmission Systems | 381 |
53 |
| BorgWarner Inc. | 2586 |
46 |
| Rolls-Royce PLC | 3224 |
41 |
| United Technologies Corporation | 2215 |
40 |
| Rolls-Royce Deutschland Ltd & Co KG | 868 |
37 |
| Safran Helicopter Engines | 853 |
37 |
| Rolls-Royce Corporation | 1681 |
33 |
| IHI Corporation | 3543 |
31 |
| Snecma | 1057 |
26 |
| SNECMA S.A. | 1145 |
22 |
| Hamilton Sundstrand Corporation | 5011 |
21 |
| GE Avio S.r.l. | 339 |
21 |
| Safran Aero Boosters SA | 185 |
15 |
| JPMorgan Chase Bank, National Association | 8978 |
14 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 855 |
14 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3289 |
13 |
| Other owners | 375 |