Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11221431 | Mid-infrared carbon dioxide sensor | Sheng-Jui Chao, Timothy Gareth John Jones, Nathan Lawrence, Rolf Rustad, Li Jiang +1 more | 2022-01-11 |
| 10921482 | Mid-infrared carbon dioxide sensor | Sheng-Jui Chao, Timothy Gareth John Jones, Nathan Lawrence, Rolf Rustad, Li Jiang +1 more | 2021-02-16 |
| 10865638 | Mid-infrared sensor | Timothy Gareth John Jones, Nathan Lawrence, Sheng-Jui Chao, Rolf Rustad | 2020-12-15 |
| 10539500 | Active surface cleaning for a sensor | Timothy Gareth John Jones, Nathan Lawrence, Sheng-Jui Chao, Steven Antony Gahlings | 2020-01-21 |
| 10487646 | Mid-infrared sensor | Timothy Gareth John Jones, Nathan Lawrence, Sheng-Jui Chao | 2019-11-26 |
| 10345480 | Mid-infrared acid sensor | Timothy Gareth John Jones, Nathan Lawrence, Sheng-Jui Chao, Li Jiang | 2019-07-09 |
| 8904859 | Detecting gas compounds for downhole fluid analysis | Jimmy Lawrence, Tim Jones, Kentaro Indo, Tsutomu Yamate, Noriyuki Matsumoto +6 more | 2014-12-09 |
| 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, Sophie Nazik Godefroy | 2014-12-09 |
| 8813554 | Methods and apparatus to estimate fluid component volumes | Andrew Carnegie, Jack H. Harfoushian, Saifon Sirimongkolkitti, Oliver C. Mullins | 2014-08-26 |
| 8555696 | Methods of calibrating a fluid analyzer for use in a wellbore | Chengli Dong, Ricardo Vasques, Michael O'Keefe, Peter S. Hegeman, Oliver C. Mullins +3 more | 2013-10-15 |
| 8393207 | Methods and apparatus to use multiple sensors to measure downhole fluid properties | Sophie Nazik Godefroy | 2013-03-12 |
| 8322196 | Vibrating wire viscometers | Raghu Madhavan, Yu Hatori, Mami Nishida, Sophie Nazik Godefroy, Michael Stangeland | 2012-12-04 |
| 8307698 | Vibrating wire viscometers | Noriyuki Matsumoto, Sophie Nazik Godefroy, Kazumasa Kato | 2012-11-13 |
| 8032303 | Methods and apparatus to determine a concentration of nitrogen in a downhole fluid | Chee Kin KHONG, Oliver C. Mullins | 2011-10-04 |
| 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, Sophie Nazik Godefroy | 2010-12-14 |
| 7500388 | Method and apparatus for in-situ side-wall core sample analysis | Oliver C. Mullins, Peter Wraight, Joel L. Groves, Lennox Reid, Felix Chen +2 more | 2009-03-10 |
| 7458258 | Methods and apparatus for oil composition determination | ChengGang Xian, Andrew Carnegie, Chengli Dong, Oliver C. Mullins | 2008-12-02 |
| 7336356 | Method and apparatus for downhole spectral analysis of fluids | Stephane Vannuffelen, Kentaro Indo, Toru Terabayashi, Tsutomu Yamate | 2008-02-26 |
| 7305306 | System and methods of deriving fluid properties of downhole fluids and uncertainty thereof | Lalitha Venkataramanan, Bhavani Raghuraman, Oliver C. Mullins, Andrew Carnegie, Ricardo Vasques +4 more | 2007-12-04 |
| 7095012 | Methods and apparatus for determining chemical composition of reservoir fluids | Oliver C. Mullins, Toru Terabayashi, Fredrick A. Jenet, Maria A. Van Agthoven, Philip Rabbito | 2006-08-22 |
| 7081615 | Methods and apparatus for the downhole characterization of formation fluids | Soraya S. Betancourt, Anthony Robert Holmes Goodwin, Oliver C. Mullins, Hani Elshahawi, Julian Pop +2 more | 2006-07-25 |
| 7075063 | Determining phase transition pressure of downhole retrograde condensate | Chengli Dong, Soraya S. Betancourt, Oliver C. Mullins, James J. Dunlap | 2006-07-11 |
| 7028773 | Assessing downhole WBM-contaminated connate water | Oliver C. Mullins, Chengli Dong, Andrew Kurkjian | 2006-04-18 |
| 7002142 | Determining dew precipitation and onset pressure in oilfield retrograde condensate | Oliver C. Mullins, Chengli Dong, Andrew Kurkjian, John Nighswander, Toru Terabayashi +3 more | 2006-02-21 |
| 6956204 | Determining fluid properties from fluid analyzer | Chengli Dong, Peter S. Hageman, Oliver C. Mullins, Soraya S. Betancourt, Julian Pop +3 more | 2005-10-18 |