Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9657561 | Downhole power conversion and management using a dynamically variable displacement pump | Saad Bargach, Stephen D. Bonner, James Patrick Massey, Jon A. Brunetti | 2017-05-23 |
| 9650834 | Downhole apparatus and method for torsional oscillation abatement | Saad Bargach, Stephen D. Bonner, James Patrick Massey, Jon A. Brunetti | 2017-05-16 |
| 9464482 | Rotary steerable drilling tool | Saad Bargach, Stephen D. Bonner, James Patrick Massey, Jon A. Brunetti | 2016-10-11 |
| 8484858 | Wall contact caliper instruments for use in a drill string | James C. Brannigan, John Rasmus, Fernando Garcia-Osuna, Alexander F. Zazovsky | 2013-07-16 |
| 8215389 | Apparatus and method for formation evaluation | Alexander F. Zazovsky, Steve Ervin, Christopher S. Del Campo, Stephane Briquet | 2012-07-10 |
| 8151893 | Sleeve assembly for downhole tools | David Kempher | 2012-04-10 |
| 8024868 | Wall contact caliper instruments for use in a drill string | James C. Brannigan, John Rasmus, Fernando Garcia-Osuna, Alexander F. Zazovsky | 2011-09-27 |
| 8015869 | Methods and apparatus to perform pressure testing of geological formations | Alexander F. Zazovsky, Nathan Landsiedel, Nicholas Josep Ellson, Vladimir Vaynshteyn | 2011-09-13 |
| 7934547 | Apparatus and methods to control fluid flow in a downhole tool | Mark Milkovisch, Alexander F. Zazovsky, Stephane Briquet, Christopher S. Del Campo, Jonathan W. Brown +1 more | 2011-05-03 |
| 7878243 | Method and apparatus for sampling high viscosity formation fluids | Anthony Robert Holmes Goodwin, Peter S. Hegeman, Julian Pop, Ashley C. Kishino, Gary John Tustin +3 more | 2011-02-01 |
| 7793713 | Apparatus and method for formation evaluation | Alexander F. Zazovsky, Steve Ervin, Christopher S. Del Campo, Stephane Briquet | 2010-09-14 |
| 7584786 | Apparatus and method for formation evaluation | Alexander F. Zazovsky, Steve Ervin, Christopher S. Del Campo, Stephane Briquet | 2009-09-08 |
| 7458419 | Apparatus and method for formation evaluation | Alexander F. Zazovsky, Steve Ervin, Christopher S. Del Campo, Stephane Briquet | 2008-12-02 |
| 7178591 | Apparatus and method for formation evaluation | Christopher S. Del Campo, Noriyuki Matsumoto, Mark Milkovisch, Hisayo Tauchi, Jonathan W. Brown +2 more | 2007-02-20 |
| 6382595 | Differential hydrostatic transmission system | — | 2002-05-07 |
| 6151774 | System of conveying and assembling logging tools | — | 2000-11-28 |
| 4914826 | Decentralized well logging apparatus for measuring the diameters of a borehole along its perpendicular diametrical axes | — | 1990-04-10 |