Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8061930 | Method of protection with massive security barriers having tie-bars in tunnels | Roger Allen Nolte, Charles Merrill | 2011-11-22 |
| 7946786 | Segmented massive security barriers having tie-bars in tunnels | Roger Allen Nolte, Charles Merrill | 2011-05-24 |
| 7866812 | Optical inserts for goggles or facemasks | — | 2011-01-11 |