Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8021750 | Insulated panel for mine safe rooms | Douglas J. Miller, Richard L. Shao, Yevegiy P. Griffin | 2011-09-20 |
| 7972698 | Carbon foam core panels | Douglas J. Miller, Irwin C. Lewis, Richard L. Shao | 2011-07-05 |