Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6344433 | Long-acting disinfectant and its preparation method | Xiu Ping Wang | 2002-02-05 |
| 6342119 | Manufacturing method of a compound substrate for light-reflective application | — | 2002-01-29 |