Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5367615 | Spatial augmentation of vertices and continuous level of detail transition for smoothly varying terrain polygon density | Richard Economy, William Austin Kelly, Thomas A. Piazza, Lee T. Quick | 1994-11-22 |
| 4967375 | Fast architecture for graphics processor | Walter R. Steiner, William S. Didden | 1990-10-30 |