Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9194784 | High pressure, high temperature lubricity tester | Hongfeng Bi, Rebecca Bi | 2015-11-24 |
| 9157846 | Bob for testing rheology and overcoming the weissenberg effect | Hongfeng Bi, Rebecca Bi | 2015-10-13 |