Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648561 | Process for the production of high purity and ultrapure bisphenol-A | Minhua Zhang, Shenbo Yu, Zongzhang Liu, Shenghua Qian, Chuanzhao Li | 1997-07-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648561 | Process for the production of high purity and ultrapure bisphenol-A | Minhua Zhang, Shenbo Yu, Zongzhang Liu, Shenghua Qian, Chuanzhao Li | 1997-07-15 |