Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 9062514 | Downhole valve | Kamil Ifitkhar, Colin Longfield | 2015-06-23 | $48,019,000 |
| 8839868 | Subsea control system with interchangeable mandrel | Tauna Leonardi, John Skaggs, John Yarnold, John A. Kerr | 2014-09-23 | $59,556,000 |
| 8336629 | Method and system for running subsea test tree and control system without conventional umbilical | Vladimir Vaynshteyn | 2012-12-25 | |
| 8002041 | Accumulator for subsea equipment | Tauna Leonardi | 2011-08-23 | $44,326,000 |
| 7984764 | Accumulator for subsea equipment | Tauna Leonardi | 2011-07-26 | $88,449,000 |
| 7628207 | Accumulator for subsea equipment | Tauna Leonardi | 2009-12-08 | $98,928,000 |
| 5069280 | Gravel packer and service tool | L. Michael McKee, Robert L. Brookey, Derrel G. Gurley, Ernie Sodich | 1991-12-03 | $92,137,000 |
| 4862957 | Packer and service tool assembly | — | 1989-09-05 | $10,349,000 |
| 4660637 | Packer and service tool assembly | Howard L. McGill | 1987-04-28 | $14,693,000 |