Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862948 | Phenolic resin adhesive pastes, assemblies prepared therefrom, and processes for preparing cast metal articles using these pastes | — | 1989-09-05 |
| 4848442 | Resin binders for foundry sand cores and molds | Raja Iyer, Rasik C. Shah | 1989-07-18 |