Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7494339 | Compositions for use as dental crowns and methods for preparing dental crowns | Walter R. Dias, Fuming Sun | 2009-02-24 |
| 6561807 | Polyvinylsiloxane impression material | — | 2003-05-13 |
| 6552104 | Method of making hydrophilic non-sweating polymerizable dental impression material | — | 2003-04-22 |
| 5955513 | Very high viscosity polyvinylsiloxane impression material | — | 1999-09-21 |
| 5863965 | Polyvinylsiloxane impression material | — | 1999-01-26 |
| 5661222 | Polyvinylsiloxane impression material | — | 1997-08-26 |
| 5554028 | Dental impression taking | Paul D. Hammesfahr | 1996-09-10 |
| 5316473 | Light curing apparatus and method | — | 1994-05-31 |
| 4867680 | Pre-loaded dental impression package and method of making | Pamela H. Hare, Paul D. Hammesfahr | 1989-09-19 |
| 4721735 | Frangible light cured compositions | Richard J. Bennett | 1988-01-26 |