Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5121947 | Expansion sealing device | Leighton Lee, II, Jeffrey C. Dickey, Loren Bonsack, John L. Grillo | 1992-06-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5121947 | Expansion sealing device | Leighton Lee, II, Jeffrey C. Dickey, Loren Bonsack, John L. Grillo | 1992-06-16 |