Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6893127 | Activity-specific optical filters and eyewear using such filters | Alan W. Reichow, Karl Citek | 2005-05-17 |
| 6631987 | Activity-specific optical filters and eyewear using such filters | Alan W. Reichow, Karl Citek | 2003-10-14 |