Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6119422 | Impact resistant building panels | Theodore E. Clear, Terrence L. Clear | 2000-09-19 |
| 4747247 | Roof system | Wayne E. Petersen, Gordon P. Petrash, Elizabeth Riley | 1988-05-31 |
| 4739599 | Energy dissipation structure for securing lightweight roofing elements | Serapio E. Lopez | 1988-04-26 |
| 4677800 | Lightweight roofing system | — | 1987-07-07 |
| 4559263 | Cement-foam composite board | — | 1985-12-17 |