Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7910074 | System and method for continuously transferring and processing liquids | William Li, Rongchang Xin, John A. Mitchell | 2011-03-22 |
| 7275430 | Method and apparatus for detecting liquid levels in liquid-storage containers | Marco Zuleta, William Li, Tan Thinh Nguyen, Rongchang Xin | 2007-10-02 |