Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8805617 | Methods and apparatus for characterization of petroleum fluids contaminated with drilling mud | Youxiang Zuo, Dingan Zhang, Oliver C. Mullins, Michael O'Keefe | 2014-08-12 |
DC
Dong Chengli
Overall (All Time): #3,120,254 of 4,157,543Top 80%
1
Patents All Time