Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11598093 | Acoustic ceiling board with improved aesthetics | Eric D. Kragness, Oliver Ebert, Alfred Winkler | 2023-03-07 |
| 10392798 | Acoustic ceiling board with improved aesthetics | Eric D. Kragness, Oliver Ebert, Alfred Winkler | 2019-08-27 |
| 9243401 | Acoustic ceiling board with improved aesthetics | Eric D. Kragness, Oliver Ebert, Alfred Winkler | 2016-01-26 |