Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D502507 | Press type ballpoint pen | — | 2005-03-01 |
| D491223 | Ballpoint/ballbearing pen | — | 2004-06-08 |
| 6394677 | Hanging pen and cord thereof | — | 2002-05-28 |
| D451139 | Dual-use pen | — | 2001-11-27 |
| 6309122 | Locating structure for a bounce device in a pen | — | 2001-10-30 |
| 6264388 | Rotary locator with differential position in a pen | — | 2001-07-24 |
| 5997203 | Writing instrument | — | 1999-12-07 |