Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11261373 | Preparation method of supercritical carbon dioxide thickener for tight oil and gas reservoir | Ming Zhou, Hongjun Tu, Xiao Guo, Jinfeng Zhang, Juncheng Bu +7 more | 2022-03-01 |
| 4939422 | Electronic ballast for tungsten lamp tubes | — | 1990-07-03 |