Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9765583 | Interval density pressure management methods | William Lesso, John James | 2017-09-19 |
| 9593571 | Determining correct drill pipe length and formation depth using measurements from repeater subs of a wired drill pipe system | George Bordakov | 2017-03-14 |
| 9404327 | Methods for evaluating borehole volume changes while drilling | William Lesso, John James | 2016-08-02 |
| 9394783 | Methods for evaluating inflow and outflow in a subterranean wellbore | William Lesso, John James | 2016-07-19 |
| 9228430 | Methods for evaluating cuttings density while drilling | William Lesso, John James, Edward Michael Tollefsen, Scott Paul, Amanda L. Weber +1 more | 2016-01-05 |
| 9175559 | Identification of casing collars while drilling and post drilling using LWD and wireline measurements | Najmud Dowla, Abhijeet Nayan, Taesoo Kim, Richard J. Radtke, Michael Evans | 2015-11-03 |
| 9134451 | Interval density pressure management methods | William Lesso, John James | 2015-09-15 |
| 9091781 | Method for estimating formation permeability using time lapse measurements | Raphael Altman, Carlos Maeso | 2015-07-28 |
| 9047689 | Method and apparatus for visualizing multi-dimensional well logging data with shapelets | Christian Stolte, Koji Ito, Shahzad A. Asif, Denis Heliot | 2015-06-02 |
| 8965703 | Applications based on fluid properties measured downhole | Ankur Prakash, Richard J. Radtke, Michael Evans, Lee Dolman | 2015-02-24 |
| 8899349 | Methods for determining formation strength of a wellbore | Vladimir Vaynshteyn, Roberto Suarez-Rivera | 2014-12-02 |
| 8857510 | System and method for determining movement of a drilling component in a wellbore | John James, William Lesso | 2014-10-14 |
| 8645068 | Method and apparatus for determining formation and fluid properties | Michael Evans, Richard J. Radtke | 2014-02-04 |
| 8484858 | Wall contact caliper instruments for use in a drill string | James C. Brannigan, Raymond V. Nold, III, Fernando Garcia-Osuna, Alexander F. Zazovsky | 2013-07-16 |
| 8473212 | Log processing in highly deviated wellbores | Jacques R. Tabanou, John P. Horkowitz, Koji Ito, Christian Stolte, Shahzad A. Asif | 2013-06-25 |
| 8442769 | Method of determining and utilizing high fidelity wellbore trajectory | Wayne J. Phillips, Georgiy Bordakov, Alexander Kostin, Shyam B. Mehta, Denis Heliot | 2013-05-14 |
| 8024868 | Wall contact caliper instruments for use in a drill string | James C. Brannigan, Raymond V. Nold, III, Fernando Garcia-Osuna, Alexander F. Zazovsky | 2011-09-27 |
| 6885942 | Method to detect and visualize changes in formation parameters and borehole condition | Frank Shray, Simon Fleury | 2005-04-26 |
| 5654503 | Method and apparatus for improved measurement of drilling conditions | — | 1997-08-05 |
| 5368108 | Optimized drilling with positive displacement drilling motors | Walter David Aldred, Dominic Patrick Joseph McCann | 1994-11-29 |
| 4949575 | Formation volumetric evaluation while drilling | — | 1990-08-21 |
| 4833914 | Pore pressure formation evaluation while drilling | — | 1989-05-30 |