Sampower Oy
3Patents
0Active
3Granted
24Portfolio score
Filing activity: Oct 21, 1991 → Jun 28, 1996
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5123245A | Method and apparatus for starting a free piston combustion engine hydraulically | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US6241488A | Multi-piston hydraulic pump for a free piston engine | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6135068A | Method for absorbing the vibration of a free-piston engine and vibration-absorbed free-piston engine | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.