Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7077239 | Expandable dual tube scaffold hatch structure | Yates Westley Hayman, Robert E. Lea | 2006-07-18 |
| 6994187 | Scaffold pick-up device | Yates Westley Hayman | 2006-02-07 |
| 6932195 | Intermediate scaffold member join | Yates Westley Hayman, Robert E. Lea | 2005-08-23 |
| 6779631 | Scaffold pick-up device | Yates Westley Hayman | 2004-08-24 |