Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5799615 | Roll-up crowd gate | David P. Hoppman, Eric Klein, Kevin L. Daleiden | 1998-09-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5799615 | Roll-up crowd gate | David P. Hoppman, Eric Klein, Kevin L. Daleiden | 1998-09-01 |