Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8294693 | Portable input device, method for calibration thereof, and computer readable recording medium storing program for calibration | Per-Erik Walberg, John Randall Christ | 2012-10-23 |
| 7627124 | Wireless communication authentication process and system | John Randall Christ | 2009-12-01 |
| 6356353 | Print controller for use with an image formation device | Toshiro Fujimori, Kenneth David Hayber, Per-Erik Walberg, Kenneth G. Bartlett, John Randall Christ | 2002-03-12 |
| D328463 | Remote control unit | Peter Skalon | 1992-08-04 |