Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7044522 | Passive capture slip-proof chain handling hook | Kirk N. Trombatore, Regas J. Vito | 2006-05-16 |
| 6402428 | Pipeline recovery tool | Ziba Morisi, Kevin Patrick Zaeringer, Dennis E. Calkins | 2002-06-11 |
| 5513929 | Fixed offshore platform structures, using small diameter, tensioned, well casing tiebacks | Dennis E. Calkins, Charles Kindel, Robin M. Converse, Roger Osborne, James Allan Haney | 1996-05-07 |