PHOSPHORTECH CORPORATION
4Patents
0Active
4Granted
25Portfolio score
Filing activity: Jul 28, 2003 → Mar 15, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6982045B2 | Light emitting device having silicate fluorescent phosphor | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6987353B2 | Light emitting device having sulfoselenide fluorescent phosphor | Emerging Cross-Sectional Technologies | 39 | Expired |
| US7112921B2 | Light emitting device having selenium-based fluorescent phosphor | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7109648B2 | Light emitting device having thio-selenide fluorescent phosphor | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.