Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6696507 | Dental composite restorative material and method of restoring a tooth | John Subelka, Steven R. Jefferies, Paul D. Hammesfahr, Paul A. Silver | 2004-02-24 |
| 6353040 | Dental composite restorative material and method of restoring a tooth | John Subelka, Steven R. Jefferies, Paul D. Hammesfahr, Paul A. Silver | 2002-03-05 |