Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4571665 | Apparatus for treating dental materials | Karl L. Grafwallner, Michael Keller | 1986-02-18 |
| 4560352 | Dispenser for metering dental compositions | Alexander Neumeister | 1985-12-24 |
| 4538070 | Apparatus for treating dental prosthetic parts with radiation | Karl L. Grafwallner, Michael Keller | 1985-08-27 |
| 4479781 | Dispenser for metering dental compositions | Rainer Grimm-Lenz, Bernd K. Burger | 1984-10-30 |
| 4464941 | Device for the contactless metering of liquids | Oswald Gasser, Gunter Pieper | 1984-08-14 |
| 4421987 | Apparatus for irradiating dental objects | — | 1983-12-20 |
| 4412134 | Apparatus for irradiating dental objects | Karl L. Grafwallner, Michael Keller | 1983-10-25 |
| 4392589 | Multiple-tube dispenser | — | 1983-07-12 |
| 4317615 | Protective case for a quartz-rod optical wave guide | — | 1982-03-02 |
| 4298806 | Apparatus for irradiating substances curable by radiation | — | 1981-11-03 |
| 4189065 | Metering dispenser for high-viscosity compositions | — | 1980-02-19 |