Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10858574 | Method of increasing scale inhibitor retention | Ping Chen, Stephen Mark Heath, Olav Vikane, Bjorn Juliussen, Thomas Hagen | 2020-12-08 |
| 10072203 | Method of increasing scale inhibitor retention | Ping Chen, Stephen Mark Heath, Olav Vikane, Bjorn Juliussen, Thomas Hagen | 2018-09-11 |
| 8653008 | Well treatment | Olav Martin Selle, Amare Mebratu, Ping Chen, Thomas Hagen | 2014-02-18 |
| 8586511 | Scale inhibiting well treatment | Ping Chen, Xing Yan, Thomas Hagen | 2013-11-19 |
| 8343897 | Scale inhibiting well treatment | Ping Chen, Thomas Hagen, Liehua Zheng | 2013-01-01 |
| 8101554 | Well treatment comprising a polymer formed from a diallyl ammonium salt and a scale inhibitor | Ping Chen, Thomas Hagen, Rex Wat, Olav Martin Selle | 2012-01-24 |
| 6379612 | Scale inhibitors | James M. Reizer, Michael Gregory Rudel, Curtis Sitz, Rex Wat | 2002-04-30 |