Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6521033 | Ink composition, writing instrument containing same and method of forming image on receiving surface | — | 2003-02-18 |
| 5972083 | Ink composition writing instrument containing same method of forming pattern on receiving surface of object and pattern forming kit | — | 1999-10-26 |
| 5082495 | Ink composition | — | 1992-01-21 |
| 5070066 | Pressure sensitive reproducing material | — | 1991-12-03 |
| 4840833 | Ink composition and a pressure sensitive reproducing | — | 1989-06-20 |
| 4744826 | Ink composition | — | 1988-05-17 |
| 4509982 | Ink composition for writing instruments | — | 1985-04-09 |
| 4441928 | Ink composition | — | 1984-04-10 |
| 4368076 | Ink composition | — | 1983-01-11 |