Power Plus Corporation
5Patents
0Active
5Granted
29Portfolio score
Filing activity: Apr 6, 1987 → Mar 17, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5390762A | Automatic crankcase oil change and makeup system | Mechanical Engineering; Lighting; Heating | 51 | Expired |
| US6577959B1 | Fluid level measuring system for machines | Physics | 46 | Expired |
| US4843525A | Solar powered yard marker | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4751622A | Solar powered construction light | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4884017A | Solar powered construction light | Emerging Cross-Sectional Technologies | 16 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.