Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9133692 | Multi-acting circulation valve | — | 2015-09-15 |
| 8528641 | Fracturing and gravel packing tool with anti-swabbing feature | Nicholas J. Clem, Martin P. Coronado, Jeffery D. Kitzman | 2013-09-10 |
| 8235114 | Method of fracturing and gravel packing with a tool with a multi-position lockable sliding sleeve | Nicholas J. Clem, Martin P. Coronado, Jeffery D. Kitzman | 2012-08-07 |
| 8230924 | Fracturing and gravel packing tool with upper annulus isolation in a reverse position without closing a wash pipe valve | Nicholas J. Clem, Martin P. Coronado, Jeffery D. Kitzman | 2012-07-31 |
| 8215395 | Fracturing and gravel packing tool with shifting ability between squeeze and circulate while supporting an inner string assembly in a single position | Nicholas J. Clem, Martin P. Coronado, Jeffery D. Kitzman | 2012-07-10 |
| 8191631 | Method of fracturing and gravel packing with multi movement wash pipe valve | Nicholas J. Clem, Martin P. Coronado, Jeffery D. Kitzman | 2012-06-05 |
| 6722439 | Multi-positioned sliding sleeve valve | Thomas W. Garay, Michael A. Carmody | 2004-04-20 |
| 6041857 | Motor drive actuator for downhole flow control devices | Michael A. Carmody, Kevin R. Jones, Robert Coon, Douglas J. Murray, Mark E. Hopmann +3 more | 2000-03-28 |