Issued Patents 2019
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10487258 | Synthetic polymer based fluid loss pill | Richard Toomes | 2019-11-26 |
| 10400155 | Insulating annular fluid | Sashikumar Mettath, Steven Young, Emanuel Stamatakis, Changping Sui | 2019-09-03 |
| 10337289 | High temperature viscosifier for insulating packer fluids | Changping Sui, Hui Zhang, William E. Foxenberg | 2019-07-02 |
| 10308861 | Methods of logging | Amr Essawi | 2019-06-04 |
| 10273400 | Colloidal silica and polymer system for insulating packer fluids | Changping Sui, Hui Zhang, William E. Foxenberg | 2019-04-30 |
| 10214677 | Breaker fluids and methods of use thereof | Daniel Alvarez, Thomas D. Welton | 2019-02-26 |