Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5089256 | Process for preparing solid powder formulations having different colors | Karl Scheller | 1992-02-18 |
| 4710372 | Dentifrice for hypersensitive teeth | — | 1987-12-01 |
| 4634589 | Dentifrice for hypersensitive teeth | — | 1987-01-06 |
| 4450599 | Electric toothbrush | Karl Scheller | 1984-05-29 |
| 4301141 | Strong foaming toothpaste | — | 1981-11-17 |
| 4223003 | Paste and powder dentifrices | — | 1980-09-16 |