Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388148 | Playground slide | Thomas Robert Norquist, Brian Henry | 1997-12-23 |
| 5688180 | Two-surface, reversible slide | Ross D. Siragusa, Jr., Brian Henry | 1997-11-18 |
| D386237 | Double helix ladder | Kert E. Artwick, Gary Max, Thomas Robert Norquist, Hollis Gentry | 1997-11-11 |
| D384722 | Two-surface reversible slide | Ross D. Siragusa, Jr., Brian Henry | 1997-10-07 |