Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D428900 | Riser for molten metal mold | — | 2000-08-01 |
| 5912201 | Self sintering ceramic composition, articles and process | Paul A. Schumacher, Orville C. Clemmons | 1999-06-15 |
| 5691259 | Process of making a self sintering ceramic composition | Paul A. Schumacher, Orville C. Clemmons | 1997-11-25 |