Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9057461 | Helically wound metal pipe with sealing arrangement | Daniel W. Aberle, Gregory W. Byrne | 2015-06-16 |
| 8795777 | Mine shaft liner plate system and method | Darrell J. Sanders, Vernon B. Cameron | 2014-08-05 |