Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7934555 | Multiple zone isolation method | — | 2011-05-03 |
| 7841412 | Multi-purpose pressure operated downhole valve | Rami J. Jasser | 2010-11-30 |
| 6230803 | Apparatus and method for treating and gravel-packing closely spaced zones | Christian F. Bayne, Perry D. Baycroft | 2001-05-15 |
| 6196796 | High torque actuation system for an active rotor control system | Steven A. Lozyniak, Peter F. Lorber, Fred W. Kohlhepp, Lee A. Hoffman, Richard B. Ferraro | 2001-03-06 |