Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822019 | Complex of clay and polyoxyalkylene amine grafted polypropylene and method for producing the same | Yi-Chien Chen | 2004-11-23 |
| 6765050 | Complexes of clay and polyoxyalkylene amine and method for producing the same | Yi-Chien Chen | 2004-07-20 |