Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5424376 | Ester cured no-bake foundry binder system | Ken K. Chang, William R. Dunnavant, Robert B. Fechter | 1995-06-13 |
| 5405881 | Ester cured no-bake foundry binder systems | James T. Schneider | 1995-04-11 |
| 5376696 | Foundry mixes based upon reclaimed sand | William R. Dunnavant, Kenneth W. Barnett | 1994-12-27 |
| 4780489 | Modifiers for aqueous basic solutions of phenolic resole resins | William R. Dunnavant, Robert B. Fechter, Young D. Kim, Heimo J. Langer | 1988-10-25 |