Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4918352 | Metal halide lamps with oxidized frame parts | Carl H. Hess, Ralph M. Potter, Timothy D. Russell, Edward G. Zubler | 1990-04-17 |
| 4499403 | Skin tanning fluorescent lamp construction utilizing a phosphor combination | Elton Leppelmeier | 1985-02-12 |