Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10807064 | Reactor for multi-phase composition | Richard D. Hembree, Michael F. McDonald, Joseph A. Maier | 2020-10-20 |
| 10774256 | Star-shaped polyacrylamide copolymer and preparation method thereof and drilling fluid including the copolymer | Zhihua Luo, Xuesong Xing, Peizhi Yu, Bairu Xia, Ziming Wang | 2020-09-15 |
| D881140 | Control box | — | 2020-04-14 |