Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8704438 | Lamp with phosphor composition for improved lumen performance, and method for making same | William Winder Beers, Fangming Du | 2014-04-22 |
| 8446085 | Fluorescent lamp with zinc silicate phosphor and protective phosphor layer | Jianmin He, Jon Bennett Jansma | 2013-05-21 |
| 8415869 | Fluorescent lamp with underlying yttrium vanadate phosphor layer and protective phosphor layer | Jianmin He | 2013-04-09 |
| 4771130 | Target-entrapped drugs | — | 1988-09-13 |