Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10967423 | Expandable copolymer resin used for manufacturing lost foam casting model and preparation method thereof | Guohua Lu | 2021-04-06 |
| 6770681 | Foamable copolymer resin and a method for preparing the same | Guohua Lu, Xiaohong Han, Jingwu Hong | 2004-08-03 |