Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10329812 | Tank cover access hatch with safety barrier | Jeffrey A. Hallsten, Roland Wright | 2019-06-25 |
| 10124291 | Trench spanning modules in a biofilter floor assembly | Jeffrey A. Hallsten, Gary Powell | 2018-11-13 |