Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5443322 | Flow control for writing or drawing instrument | Walter Jozat | 1995-08-22 |
| 5211495 | Tubular writing instrument with suction vent | Walter Jozat, Ronald Broers, Thomas Hentze, Horst Eising | 1993-05-18 |
| 5052841 | Stylo pen tip | Walter Jozat | 1991-10-01 |