Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6916369 | Beneficiated water reducing compositions | Byong-Wa Chun, Benita Dair, Charlotte Porteneuve, Josephine H. Cheung, Lawrence R. Roberts | 2005-07-12 |
| 6858661 | Defoamer for water reducer admixture | Xuan Zhang, Josephine H. Cheung | 2005-02-22 |