Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597151 | Stake puller with stake supporting back plate | — | 1997-01-28 |
| 5332071 | Shock absorber for safety cable system | — | 1994-07-26 |
| 5299654 | Safety net support system | — | 1994-04-05 |
| 5170829 | Retractable pallet rack guard | John Starr, John B. Ebbesmeyer, Barry A. Cole | 1992-12-15 |
| 4962828 | Debris net/scaffolding frame lifting system | — | 1990-10-16 |
| 4892169 | Perimeter debris net lifting system | — | 1990-01-09 |
| 4723633 | Adjusting screw retainer | — | 1988-02-09 |
| 4549634 | Scaffold connector assembly | David George Murray | 1985-10-29 |