Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618546 | Composite of selectively removable layers of silk screen printing ink | Monte Dale Wood, Asutosh Nigam | 1997-04-08 |
| 5160369 | Mechanically erasable ballpoint ink | Dean B. Parkinson | 1992-11-03 |
| 4865552 | Ophthalmologic phantom system | William F. Maloney, Deborah K. Hall, Dean B. Parkinson, Allen L. Dodge | 1989-09-12 |
| 4762496 | Ophthalmologic lens phantom system | William F. Maloney, Deborah K. Hall, Dean B. Parkinson, Allen L. Dodge | 1988-08-09 |
| 4519632 | Identification card with heat reactive coating | Dean B. Parkinson | 1985-05-28 |