Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811859 | Seal for floating roof | — | 1989-03-14 |
| 4273250 | Sealing system for liquid storage tanks | Mark D. Kinghorn, Sr. | 1981-06-16 |
| 4191303 | Liquid storage tank sealing system | Mark D. Kinghorn, Sr. | 1980-03-04 |