Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6189450 | Ink refillable stamp | — | 2001-02-20 |
| 6047639 | Ink refillable stamp | — | 2000-04-11 |
| 5855170 | Ink-replenishable signet | — | 1999-01-05 |
| 5819650 | Pre-ink die-plate dater | — | 1998-10-13 |
| 5772050 | Ink stamp rack | — | 1998-06-30 |
| 5709145 | Matrix plate holder and matrix plate for a hand stamp | — | 1998-01-20 |
| 5671668 | Hand stamp | — | 1997-09-30 |
| 5303648 | Roller stamp | — | 1994-04-19 |
| 5048415 | Stamp combination | — | 1991-09-17 |
| D319462 | Automatic numbering machine | — | 1991-08-27 |