Issued Patents All Time
Showing 26–50 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8890341 | Harvesting energy from a drillstring | Murat Ocalan, Nathan Wicks, Hitoshi Tashiro | 2014-11-18 |
| 8861307 | Acoustic logging while drilling tool with active control of source orientation | — | 2014-10-14 |
| 8604634 | Energy harvesting from flow-induced vibrations | Giorgia Bettin | 2013-12-10 |
| 8540015 | Apparatus and method for treating a subterranean formation using diversion | Murat Ocalan, Francois M. Auzerais, Partha Ganguly, Agathe Robisson | 2013-09-24 |
| 8469117 | Drill bits and methods of drilling curved boreholes | Demosthenis Pafitis, Joachim Sihler | 2013-06-25 |
| 8421251 | Enhancing the effectiveness of energy harvesting from flowing fluid | Giorgia Bettin | 2013-04-16 |
| 8307914 | Drill bits and methods of drilling curved boreholes | Demosthenis Pafitis, Joachim Sihler | 2012-11-13 |
| 8297367 | Mechanism for activating a plurality of downhole devices | Kuo-Chiang Chen, Hitoshi Tashiro, Iain Cooper, Murat Ocalan | 2012-10-30 |
| 8286705 | Apparatus and method for treating a subterranean formation using diversion | Murat Ocalan, Francois M. Auzerais, Partha Ganguly, Agathe Robisson | 2012-10-16 |
| 8180614 | Modeling vibration effects introduced by mud motor | Yong Chang, Nathaniel Wicks, Richard John Harmer, Yingyu Fang, Xiaoyan Shi | 2012-05-15 |
| 8127833 | Methods and apparatus for harvesting potential energy downhole | James Garland O'Connell, Burt S. Tilley, Matthew E J Brouillard, Tal Schwartz, Brandon Christopher Rowan +2 more | 2012-03-06 |
| 8102732 | Anisotropy measurement while drilling | Chaur-Jian Hsu, Bikash K. Sinha | 2012-01-24 |
| 8014987 | Modeling the transient behavior of BHA/drill string while drilling | Nathan Wicks, Yong Chang, Clinton D. Chapman, Vivek Singh | 2011-09-06 |
| 7984771 | Methods and apparatus for attenuating drillstring vibrations | Joachim Sihler, Demosthenis Georgeou Pafitis, Chaur-Jian Hsu | 2011-07-26 |
| 7963347 | Systems and methods for reducing backward whirling while drilling | — | 2011-06-21 |
| 7906861 | Harvesting energy in remote locations | Julio C. Guerrero, Francois M. Auzerais, Kuo-Chiang Chen, Kevin John Forbes | 2011-03-15 |
| 7828082 | Methods and apparatus for attenuating drillstring vibrations | Joachim Sihler, Demosthenis Georgeou Pafitis, Chaur-Jian Hsu | 2010-11-09 |
| 7764572 | Methods and systems for acoustic waveform processing | Peter Wu | 2010-07-27 |
| 7729860 | Drilling system powered by energy-harvesting sensor | Julio C. Guerrero, Joachim Sihler, Demosthenis Pafitis | 2010-06-01 |
| 7660196 | Methods for processing dispersive acoustic waveforms | Yoshiyuki Saiki, Oliver Skelton, Bikash K. Sinha | 2010-02-09 |
| 7623412 | Anisotropy measurement while drilling | Chaur-Jian Hsu, Bikash K. Sinha | 2009-11-24 |
| 7560856 | Harvesting energy from flowing fluid | Kuo-Chiang Chen, Partha Ganguly, Murat Ocalan, Julio C. Guerrero, Kevin John Forbes | 2009-07-14 |
| 7529152 | Use of an effective tool model in sonic logging data processing | Bikash K. Sinha, Toru Ikegami, David Johnson | 2009-05-05 |
| 7463550 | Stoneley radial profiling of formation shear slowness | Bikash K. Sinha, Mare Yamamoto | 2008-12-09 |
| 7336562 | Sonic logging tool including receiver and spacer structure | David C. Hoyle, Hitoshi Tashiro, Akira Otsuka, Hitoshi Sugiyama | 2008-02-26 |