Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7246638 | Filling device comprising lateral filling windows | Siegbert Vial | 2007-07-24 |
| 5988434 | Dosage withdrawal apparatus | Karl Heinz Zulauf, Hartmut Erlinghagen | 1999-11-23 |
| 5433545 | Writing implement | — | 1995-07-18 |
| 5145272 | Projectable and retractable, push button writing instrument | — | 1992-09-08 |
| 5026189 | Writing implement with coaxial alternately usable tips | — | 1991-06-25 |
| 4999017 | Multi-color writing utensil | — | 1991-03-12 |