Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D399255 | Mechanical pencil | — | 1998-10-06 |
| 5735622 | Writing instrument with a compressible friction coating and method of making | David Melnick | 1998-04-07 |
| 5590971 | Marking pen and cap | — | 1997-01-07 |
| D368490 | Marking pen | — | 1996-04-02 |