Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5498280 | Phosphorescent and fluorescent marking composition | David C. Fistner, Sr. | 1996-03-12 |
| 5460647 | Color-changing marking composition system | David C. Fistner, Sr. | 1995-10-24 |
| 4978390 | Washable solid marking composition | — | 1990-12-18 |