Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5406039 | Sectional acoustical barrier wall system | Hans J. Rerup | 1995-04-11 |
| 4395159 | Mechanical protection coating for coated metal substrate | Ergo Karuks | 1983-07-26 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5406039 | Sectional acoustical barrier wall system | Hans J. Rerup | 1995-04-11 |
| 4395159 | Mechanical protection coating for coated metal substrate | Ergo Karuks | 1983-07-26 |