Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11225046 | Gypsum board with perforated cover sheet and system and method for manufacturing same | Dale M. Shubert, Ronald E. Schenck, John M. Willi | 2022-01-18 |
| 8590248 | Indexing tab for grid runners | James J. Lehane, Donald J. Leahy, Steven E. Farley, Peder J. Gulbrandsen | 2013-11-26 |