Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11098483 | Acoustic structural building panels | John Michael Kolcun, James John Kolcun, Arthur Balzereit | 2021-08-24 |
| 10570617 | Acoustic structural building panels | John Michael Kolcun, James John Kolcun, Arthur Balzereit | 2020-02-25 |