Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354788 | Dialdehyde modified phenolic foundry sand core binder resins, processes for making same, and process for preparing foundry cores and molds employing same | Calvin K. Johnson, Sudhir K. Trikha | 1994-10-11 |
| 5281644 | Ambient temperature hardening binder compositions | S. Raja Iyer, Arthur H. Gerber | 1994-01-25 |