Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6611556 | Identification system for monitoring the presence/absence of members of a defined set | Ralph J. Koerner | 2003-08-26 |
| 6552661 | Zone based radio frequency identification | Roc Lastinger, John J. Coulthard | 2003-04-22 |