Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643675 | Addition for promotion of bench life extension in a hot box binder system | William J. Ward, Bruce Eric Wise | 1997-07-01 |
| 5621036 | Bound multi-component sand additive | Michael M. Geoffrey | 1997-04-15 |