Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5981622 | Foundry binder of polyurethane, phenolic resin, polyisocyanate and epoxy resin | — | 1999-11-09 |
| 5962567 | Bound multi-component sand additive | Robert A. Laitar | 1999-10-05 |
| 5852071 | Biphenyl additive for improvement in urethane foundry binders | — | 1998-12-22 |
| 5792802 | Biphenyl additive for improvement in urethane foundry binders | — | 1998-08-11 |
| 5744518 | Biphenyl additive for improvement in urethane foundry binders | — | 1998-04-28 |
| 5733952 | Foundry binder of phenolic resole resin, polyisocyanate and epoxy resin | — | 1998-03-31 |
| 5621036 | Bound multi-component sand additive | Robert A. Laitar | 1997-04-15 |
| 5264535 | Low free formaldehyde phenolic polyol formulation | Robert A. Laitar | 1993-11-23 |
| 5189079 | Low free formaldehyde phenolic polyol formulation | Robert A. Laitar | 1993-02-23 |