Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9777478 | Drywall sheet end joint | Peder J. Gulbrandsen | 2017-10-03 |
| 9738796 | Acoustically transparent coating | Rafael Bury, Donghong Li | 2017-08-22 |
| 9598864 | Suspension system for flat drywall ceiling | James J. Lehane, Peder J. Gulbrandsen | 2017-03-21 |