Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7988831 | Method for purifying an aqueous patassium hydroxide solution having rich silicon impurities | Sage Hsu | 2011-08-02 |
| 7166264 | Processes for purifying phosphoric acid and for preparing phosphoric acid | Sage Hsu | 2007-01-23 |
| 7083768 | Processes for purifying phosphoric acid and for preparing phosphoric acid | Sage Hsu | 2006-08-01 |