Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5651158 | Toothbrush with resiliently flexible head | — | 1997-07-29 |
| D378350 | Toothpaste tube | — | 1997-03-11 |
| 5597253 | Stick refill system | Tilwin Lepsius, Gerhard Gierenz, Klaus Tranelis, Gerd-Ruediger Reinfelder, Joachim Franken | 1997-01-28 |