Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6552121 | Alkali silicate-polyisocyanate composites | — | 2003-04-22 |
| 6534555 | Catalyst systems for polyurethane polyester foams | Ernest L. Rister, Jr., Robert L. Zimmerman | 2003-03-18 |