Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10534871 | Method and systems for reservoir modeling, evaluation and simulation | Andrew E. Pomerantz, Youxiang Zuo, John Waggoner, Zulfiquar Ail Reza, Thomas Pfeiffer +2 more | 2020-01-14 |
| 8915123 | Methods and apparatus for determining a viscosity of oil in a mixture | Christopher Harrison, Andreas Hausot, Matthew T. Sullivan | 2014-12-23 |
| 8909478 | Method for calculating the ratio of relative permeabilities of formation fluids and wettability of a formation downhole, and a formation testing tool to implement the same | Maki Ikeda, Go Fujisawa | 2014-12-09 |
| 8393207 | Methods and apparatus to use multiple sensors to measure downhole fluid properties | Go Fujisawa | 2013-03-12 |
| 8322196 | Vibrating wire viscometers | Raghu Madhavan, Yu Hatori, Mami Nishida, Michael Stangeland, Go Fujisawa | 2012-12-04 |
| 8307698 | Vibrating wire viscometers | Noriyuki Matsumoto, Kazumasa Kato, Go Fujisawa | 2012-11-13 |
| 8166812 | Vibrating wire viscometers | Emmanuel Desroques, Anthony Robert Holmes Goodwin, Christopher Harrison, Kai Hsu, Noriyuki Matsumoto | 2012-05-01 |
| 8022707 | Methods and apparatus for determining a presence of a non-conductive coating on electrodes in downhole fluid resistivity measurement devices | Michael O'Keefe | 2011-09-20 |
| 7874355 | Methods and apparatus for removing deposits on components in a downhole tool | Michael O'Keefe, Nasser Dilmaghani Zadeh | 2011-01-25 |
| 7849736 | Method for calculating the ratio of relative permeabilities of formation fluids and wettability of a formation downhole, and a formation testing tool to implement the same | Maki Ikeda, Go Fujisawa | 2010-12-14 |
| 7574898 | Vibrating wire viscosity sensor | Christopher Harrison, Isabelle Etchart, Kai Hsu, Jacques Jundt, Anthony Robert Holmes Goodwin +2 more | 2009-08-18 |