Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624489 | Conversion-preventing additive for high alumina cement products | Yan Fu, James J. Beaudoin | 1997-04-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624489 | Conversion-preventing additive for high alumina cement products | Yan Fu, James J. Beaudoin | 1997-04-29 |