Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4551958 | Exterior insulating element and cladding employing such elements | Francis Ovaert | 1985-11-12 |
| 4434592 | Heat and sound insulating structure for boarding or other non-loadbearing wall | Francis Ovaert | 1984-03-06 |
| 4228624 | Heat-sound insulating wall | Francis Ovaert | 1980-10-21 |