Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12404440 | Environmentally acceptable wellbore stability additive | Jay Paul Deville, Preston Andrew May, Miren Aranzazu Castanares, William Walter Shumway | 2025-09-02 |
| 12060518 | Compositions and methods for inhibiting shale and preventing shale accretion | Sandeep Vasant Chavan | 2024-08-13 |
| 12043788 | Environmentally acceptable wellbore stability additive | Jay Paul Deville, Preston Andrew May, Miren Aranzazu Castanares, William Walter Shumway | 2024-07-23 |
| 12006468 | Modified vegetable oil as fluid loss control additive | Sharad Bhimrao Gotmukle, Nivika Rajendra Gupta | 2024-06-11 |
| 11906688 | Using electrical signal as a measure of water wettability for direct emulsion fluids | Catherine Martin Santos, Dale E. Jamison | 2024-02-20 |
| 11591508 | Oil-based drill-in fluid with enhanced fluid loss properties | Chesnee Lae Davis, William Walter Shumway | 2023-02-28 |
| 11492532 | Stable emulsion drilling fluids | William Walter Shumway | 2022-11-08 |
| 11365338 | Solid shale inhibitor additives | Preston Andrew May | 2022-06-21 |
| 11285489 | Milling oilfield particulates | Henry Magne Hakstad, Chris L. Bosch, Johannes Rygg | 2022-03-29 |
| 11015107 | Methods of cleaning invert emulsion drilling fluids | Yerzhan Ayapbergenov, Katerina V. Newman, Jonathan Paul Walker | 2021-05-25 |
| 10914664 | Inclined roller oven for dynamic sag evaluation/determination of settling velocity | Dale E. Jamison | 2021-02-09 |
| 10520484 | Aging testing apparatus and use thereof | Ketan C. Bhaidasna, Andrew D. Vos | 2019-12-31 |
| 9497098 | Event-monitoring in a system for automatically obtaining and managing physical layer information using a reliable packet-based communication protocol | Eric W. Sybesma | 2016-11-15 |
| 9081537 | Identifier encoding scheme for use with multi-path connectors | Eric W. Sybesma | 2015-07-14 |
| 8949496 | Double-buffer insertion count stored in a device attached to a physical layer medium | Laxman R. Anne | 2015-02-03 |
| 8832503 | Dynamically detecting a defective connector at a port | Laxman R. Anne, Steven M. Swam, Eric W. Sybesma | 2014-09-09 |
| 8691733 | Suspension characteristics in invert emulsions | Shadaab Syed Maghrabi, Vikrant Wagle, William Walter Shumway | 2014-04-08 |
| 8569213 | Drilling fluids having reduced sag potential and related methods | Nicholas Charles Braley, Donald R. Siems, Dale E. Jamison, Patrick Baker | 2013-10-29 |
| 8558311 | Dielectrics using substantially longitudinally oriented insulated conductive wires | Robert S. Dubrow, David Stumbo | 2013-10-15 |
| 8476201 | Drilling fluids having reduced sag potential and related methods | Nicholas Charles Braley, Donald R. Siems, Patrick Baker, Dale E. Jamison | 2013-07-02 |
| 8191739 | Mixed gas method for filling aerosol containers and aerosol formulas for improved environmental profile by VOC/HFC reduction | Randy S. Cash, Ian R. Gecker, David L. Patterson, Stephen A. Thomas | 2012-06-05 |
| 8089152 | Continuously variable graded artificial dielectrics using nanostructures | — | 2012-01-03 |
| 7985717 | Methods of using drilling fluids containing biodegradable organophilic clay | — | 2011-07-26 |
| 7867953 | Methods of using drilling fluids containing biodegradable organophilic clay | — | 2011-01-11 |
| 7781379 | Drilling fluids containing biodegradable organophilic clay treated with an amide-containing quaternary ammonium surfactant | — | 2010-08-24 |