Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6557256 | Molded building panel and method of construction | Patricia Billings | 2003-05-06 |
| 6526714 | Molded building panel and method of construction | Patricia Billings | 2003-03-04 |
| 6230409 | Molded building panel and method of construction | Patricia Billings | 2001-05-15 |
| 5795380 | Lightweight roof tiles and method of production | Patricia Billings | 1998-08-18 |
| 5647180 | Fire resistant building panel | Patricia Billings | 1997-07-15 |