Issued Patents All Time
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, Robert A. Laitar | 1997-07-01 |
| 5126089 | Method for easy removal of sand cores from castings | Calvin K. Johnson | 1992-06-30 |