Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800174 | System for making wallboard or backerboard sheets including aerated concrete | Leslie G. Bromwell | 2004-10-05 |
| 6787486 | Backerboard sheet including aerated concrete core | Leslie G. Bromwell | 2004-09-07 |
| 6682617 | Method for making wallboard or backerboard sheets including aerated concrete | Leslie G. Bromwell | 2004-01-27 |
| 6533970 | Method for making aerated concrete blocks having at least one passageway drilled therein | — | 2003-03-18 |
| 6530772 | System for making aerated concrete blocks having at least one passageway drilled therein | — | 2003-03-11 |
| 6421973 | Wallboard sheet including aerated concrete core | Leslie G. Bromwell | 2002-07-23 |
| 6416619 | System for making wallboard or backerboard sheets including aerated concrete | Leslie G. Bromwell | 2002-07-09 |
| 6409855 | Method for making wallboard or backerboard sheets including aerated concrete | Leslie G. Bromwell | 2002-06-25 |