Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292500 | Plaque-inhibiting toothpaste comprising antibacterial biguanides | Peter Wuelknitz, Rudolf Lehmann, Franz Foerg | 1994-03-08 |
| 5279814 | Oral-hygiene/dentifrice preparations which protect dental enamel | Peter Wuelknitz, Hans Laska | 1994-01-18 |
| 4923685 | Antimicrobial flavored compositions having particular utility as mouth washes | Peter Wuelknitz, Rudolf Lehmann, Karlheinz Hill, Franz Forg | 1990-05-08 |
| 4820507 | Oral and dental hygiene preparations | Hans-Juergen Klueppel, Horst Rutzen, Rudolf Lehmann | 1989-04-11 |
| 4748158 | Alkyl glycosides as potentiating agents in antiseptic, disinfecting and cleaning preparations to increase microbicidal activity | Manfred Biermann, Rudolf Lehmann, Harald Schnegelberger, Hans-Juergen Klueppel, Karl Schmid | 1988-05-31 |
| 4726943 | Anti-caries composition | Hans-Juergen Klueppel, Hinrich Moeller | 1988-02-23 |
| 4701062 | Printing ribbon spool | — | 1987-10-20 |
| 4457102 | Method of growing grapevines | — | 1984-07-03 |