Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9156304 | Ink-delivery systems | Christopher P. Orem, David A. Cziraky | 2015-10-13 |
| 9114662 | Ink-delivery systems | Christopher P. Orem, David A. Cziraky | 2015-08-25 |
| 8485749 | Ink delivery systems | Christopher P. Orem, David A. Cziraky | 2013-07-16 |
| 7101104 | Free ink system | Ralf Polley, Bernd Bastiansen | 2006-09-05 |
| 7037015 | Roller ball pen for pigmented inks | Sean A. Ferrigan, Norman P. De Bastiani | 2006-05-02 |
| 6695517 | Free ink system | Ralf Polley, Bernd Bastiansen | 2004-02-24 |
| 6632041 | Free ink system | Gerold Anderka, Bernd Bastiansen, Ralf Polley | 2003-10-14 |
| 6322269 | Free ink system | Gerold Anderka, Bernd Bastiansen, Ralf Polley | 2001-11-27 |
| 5734400 | Method and apparatus for refilling ink jet unit printer cartridges | Bruce Brunetti, Walter Barry Wexler | 1998-03-31 |
| 5420615 | Unitary body plotter pen | Bernd Bastiansen | 1995-05-30 |
| 4753546 | Pressure balanced stylographic pen | Fortunato J. Micale, John P. Leuenberger | 1988-06-28 |
| D257857 | Drawing pen | John P. Leuenberger | 1981-01-13 |