Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9782801 | Vibratory screener with an adapter frame | Jonathan Weiner, William Zhao | 2017-10-10 |
| 5799799 | Ultrasonic screening system | William Zhao, Alfred Heidinger | 1998-09-01 |
| 5700497 | Vibratory agglomerator | Lawrence H. Stone, William Zhao | 1997-12-23 |