Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5845443 | Glass block fire wall | Michelle Ann Wirkus | 1998-12-08 |
| 5740646 | Glass brick wall | Michelle Ann Wirkus | 1998-04-21 |
| 5704177 | Separation means for glass block wall | Michelle Ann Wirkus | 1998-01-06 |
| 5640818 | Brick walls | Michelle Ann Wirkus | 1997-06-24 |
| 5640819 | Glass block wall | Michelle Ann Wirkus | 1997-06-24 |