Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10329812 | Tank cover access hatch with safety barrier | Jeffrey A. Hallsten, Ronald Kuehne | 2019-06-25 |
| 10227799 | Slide lock for hatch on gas containment cover | Jeffrey A. Hallsten | 2019-03-12 |