Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4603726 | Method of making individual castings | Hubert Pfannenstiel | 1986-08-05 |
| 4544742 | 1,2,6-Thiadiazine-3,5-dione-1,1-dioxides | Werner Schmitt, Robert Purrmann, Peter Jochum, Bernd Burger | 1985-10-01 |
| 4443587 | 1,2,6-Thiadiazine-3,5-dione-1,1-dioxides and their use as polymerization accelerators | Werner Schmitt, Robert Purrmann, Peter Jochum, Bernd Burger | 1984-04-17 |
| 4389497 | Use of agglomerates of silicic acid as fillers in dental materials | Werner Schmitt, Robert Purrmann, Peter Jochum | 1983-06-21 |
| 4372836 | Light curable acrylic dental composition with calcium fluoride pigment | Werner Schmitt, Robert Purrmann, Peter Jochum | 1983-02-08 |