Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9765253 | Lightweight hollow particles for use in cementing | Thomas Jason Pisklak, Qi Qu | 2017-09-19 |
| 9033040 | Use of composite of lightweight hollow core having adhered or embedded cement in cementing a well | Thomas Jason Pisklak, Qi Qu | 2015-05-19 |
| 8796188 | Light-weight proppant from heat-treated pumice | Thomas Jason Pisklak, Richard F. Stevens, Qi Qu | 2014-08-05 |