Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6771276 | Two-dimensional drawing environment utilizing perspective grids | Fan Yu, David Halpin | 2004-08-03 |
DH
Delores Highsmith
Overall (All Time): #3,486,097 of 4,157,543Top 85%
1
Patents All Time