Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5407514 | Method for welding thermoplastic materials | Ernest O. Butts, Nicholas E. Butts | 1995-04-18 |
| 5407520 | Welding rod | Ernest O. Butts, Nicholas E. Butts | 1995-04-18 |
| 5049287 | Oil spill recovery method and apparatus | — | 1991-09-17 |