Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5574480 | Computer pointing device | Maarten R. Pranger, Richard Pekelney, David C. Shafer | 1996-11-12 |
| 5428369 | Computer pointing device | Maarten R. Pranger, Richard Pekelney, David C. Shafer | 1995-06-27 |