Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633053 | Structural element with intermediate ribbing support | Stephen Robert Kelly, Randall Walker, John Kaiser | 1997-05-27 |
| 5616376 | Reticulated structural element | Stephen Robert Kelly, Randall Walker, John Kaiser | 1997-04-01 |