Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6107564 | Solar cell cover and coating | William H. Howard, Matthew E. Krisl | 2000-08-22 |
| 5164858 | Multi-spectral filter | William M. Robbins, Richard P. Shimshock, Leroy A. Bartolomei | 1992-11-17 |
| 5072109 | Photocell array with multi-spectral filter | William M. Robbins, Richard P. Shimshock, Leroy A. Bartolomei | 1991-12-10 |