Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5494378 | Piling apparatus | — | 1996-02-27 |
| 4673187 | Bimetallic spiral wound gasket | Gregory M. Pritchett | 1987-06-16 |
| 4348032 | Head gasket having resilient seal with Belleville springs | Silvano A. Bosdachin | 1982-09-07 |
| D255434 | Frame leveler | — | 1980-06-17 |