Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4494350 | Aluminum suspension system | — | 1985-01-22 |
| 4462198 | Suspended ceiling system | — | 1984-07-31 |
| 4449166 | Lighting fixture and air flow support system | — | 1984-05-15 |
| 4364686 | Locking device for grid system | Ormond S. Sutter, Philip W. Cornwell | 1982-12-21 |