Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351918 | Insulated concrete wall | Gregory A. Westra | 2002-03-05 |
| 6079176 | Insulated concrete wall | Gregory A. Westra | 2000-06-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351918 | Insulated concrete wall | Gregory A. Westra | 2002-03-05 |
| 6079176 | Insulated concrete wall | Gregory A. Westra | 2000-06-27 |