Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5858379 | Adhesive for dental prosthesis | Rainer Knollman | 1999-01-12 |
| 5015408 | Denture cleaning tablet containing a bleach activator and an organic phosphonic acid stabilizer | — | 1991-05-14 |
| 4256599 | Denture cleansing tablet and process for making | Werner Krisp, Rainer Malkowski | 1981-03-17 |
| 4217234 | Denture cleansing tablet and method of manufacturing the same | Werner Krisp | 1980-08-12 |