Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351920 | Ceiling module perimeter seal | Larry D. Hopkins | 2002-03-05 |
| 5794397 | Clean room ceiling structure light fixture wireway | — | 1998-08-18 |
| 5628581 | Sheet metal construction system | Michael D. Hintz, Laird I. Richardson | 1997-05-13 |
| 5613759 | Light and filter support structure | Richard E. Spradling, David E. Benson | 1997-03-25 |
| 5454756 | Clean room ventilation system | — | 1995-10-03 |
| 5192348 | Directional air diffuser panel for clean room ventilation system | — | 1993-03-09 |