Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6402428 | Pipeline recovery tool | Raymond J. Serpas, Kevin Patrick Zaeringer, Dennis E. Calkins | 2002-06-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6402428 | Pipeline recovery tool | Raymond J. Serpas, Kevin Patrick Zaeringer, Dennis E. Calkins | 2002-06-11 |