Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11242268 | Compound heavy metal chelating agent containing dithiocarboxylate functionalized ethoxylated pentaerythritol core hyperbranched polymer | Bingru Zhang, Fengting Li | 2022-02-08 |
| 11236206 | Ethoxylated pentaerythritol core hyperbranched polymer with dithiocarboxylate as side group and terminal group and applications of chelating heavy metals | Bingru Zhang, Fengting Li | 2022-02-01 |
| 9074867 | Flatness measuring apparatus | Qiang Mei, Ming Li, Hong Zhang, Jian Jin, Sheng-Yuan Wu +1 more | 2015-07-07 |
| 8087125 | Suction head structure and vacuum cleaner using the same | Sheng-Yuan Wu, SAN-YAN ZHANG | 2012-01-03 |