Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5018974 | Coloring book or the like with ink-reactive, fragrance-releasing areas | David W. Carnahan, Paul J. A. French, Richard K. Maury, Philip J. Oaten | 1991-05-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5018974 | Coloring book or the like with ink-reactive, fragrance-releasing areas | David W. Carnahan, Paul J. A. French, Richard K. Maury, Philip J. Oaten | 1991-05-28 |