Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923685 | Antimicrobial flavored compositions having particular utility as mouth washes | Peter Wuelknitz, Rudolf Lehmann, Walter Ploeger, Karlheinz Hill | 1990-05-08 |
| 4632826 | Polishing composition and dentifrice | Walter Ploger, Hans-Jurgen Kluppel | 1986-12-30 |