Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7785549 | Recycling system for hydroxylamine formation and oximation | Jih-Dar Hwang, Hsiu-Li Cheng | 2010-08-31 |
| 7700767 | System and process for purifying an aqueous solution of crude caprolactam | Chien-Hsien Li | 2010-04-20 |
| 7671236 | Process for production of cyclohexanone oxime | Jih-Dar Hwang, Kai-Hung Haung, Hsiu-Li Cheng | 2010-03-02 |
| 7381843 | Method for preparing hydroxylamine | Shu-Hung Yang | 2008-06-03 |