FES CO., LTD.
5Patents
2Active
5Granted
35Portfolio score
Filing activity: Sep 3, 1987 → Feb 28, 2017 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4788825A | Oil separator | Performing Operations; Transporting | 13 | Expired |
| US5257921A | Electronic slide valve position indicator | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4743170A | Slide valve position indicator and magnetic coupler | Electricity | 4 | Expired |
| US7859394B1 | Shift light system and method | Performing Operations; Transporting | 1 | Active |
| US10780316B2 | Lip muscle strengthening device for preventing malocclusion and improving mouth breathing | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.