Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4308191 | Foundry sand mixes with improved bench life for curing with sulfur dioxide or other oxidizable gaseous catalysts | Roger H. Kottke, James E. Menting, R. Bruce Sampsell | 1981-12-29 |