Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5546708 | Self-leveling countertop underlayment | Eleftherios T. Efstratis | 1996-08-20 |
| 5260007 | Method of forming a self-leveling underlayment for a countertop | Eleftherios T. Efstratis | 1993-11-09 |