Three Star Enterprises, Inc.
4Patents
0Active
4Granted
26Portfolio score
Filing activity: Feb 28, 1994 → Feb 8, 1996
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5572967A | Variable roller valve system for internal combustion engine | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5655494A | Variable roller valve system for internal combustion engine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5509332A | Friction clutch hand tool | Performing Operations; Transporting | 13 | Expired |
| US5535647A | Friction clutch wrench | Performing Operations; Transporting | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.