Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10883909 | Apparatus for measuring rheological properties and velocities of a fluid | Changhua Qiu, Kent Wei | 2021-01-05 |
| 10408777 | Density measurement system and method | Changhua Qiu | 2019-09-10 |
| 7397875 | Method of synchronising data | Carl Hudson, Allen Parkinson | 2008-07-08 |