Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4375966 | System for making direct oral impression tray | — | 1983-03-08 |
| 4252526 | Barium aluminum silicate filler for U.V. curable composites | Narayanan Madhavan | 1981-02-24 |
| 4192795 | Barium aluminum silicate filler for U.V. curable composites | Narayanan Madhavan | 1980-03-11 |