Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9663948 | Free span ceiling grid system | James J. Lehane, Lee M. Tedesco, Peder J. Gulbrandsen, John M. Willi, Donald J. Leahy +2 more | 2017-05-30 |
| 9534383 | Ceiling panel system | Peder J. Gulbrandsen, Mark R. Paulsen | 2017-01-03 |