Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D376191 | Portable tank | Neil P. Stapensea, Dan J. Proska, Gil Rollison | 1996-12-03 |
| 5558252 | Portable chemcial tank with integral transfer system | Neil P. Stapensea, Dan J. Proska, Gil Rollison | 1996-09-24 |