Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5896925 | Tool protection guide | Gerald Brian Swagerty, David Cain, Don B. Wafer, Randy Elum, Bashir M. Koleilat +1 more | 1999-04-27 | $14,862,000 |
| 5782297 | Retrieval tool for back pressure valve and tree test plug | Martin L. Samuels, Bashir M. Koleilat, David Cain, Neil Crawford, Henry Wong | 1998-07-21 | $11,437,000 |
| 5730218 | Tool protection guide with energy absorbing bumper | Gerald Brian Swagerty, David Cain, Don B. Wafer, Randy Elum, Bashir M. Koleilat +1 more | 1998-03-24 | $3,296,000 |
| 5474124 | Wellhead retrieval tool assembly | Martin L. Samuels, Bashir M. Koleilat, David Cain, Neil Crawford | 1995-12-12 |