Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8024125 | Methods and apparatus to monitor contamination levels in a formation fluid | Kai Hsu, Chengli Dong, Ricardo Vasques | 2011-09-20 |
| 7966273 | Predicting formation fluid property through downhole fluid analysis using artificial neural network | Chengli Dong, Charles Woodburn, Graham Birkett, Nikos Varotsis, Vassilis Gaganis | 2011-06-21 |
| 7913556 | Methods and apparatus to determine the compressibility of a fluid | Kai Hsu | 2011-03-29 |
| 7886825 | Formation fluid sampling tools and methods utilizing chemical heating | Ronald E. G. van Hal, Anthony Robert Holmes Goodwin, Oliver C. Mullins, Bhavani Raghuraman, Soraya S. Betancourt +4 more | 2011-02-15 |
| 7878243 | Method and apparatus for sampling high viscosity formation fluids | Anthony Robert Holmes Goodwin, Julian Pop, Ashley C. Kishino, Gary John Tustin, Raymond V. Nold, III +3 more | 2011-02-01 |