| Number | Name | Date | Kind |
|---|---|---|---|
| 4725718 | Sansone et al. | Feb 1988 | A |
| 4831555 | Sansone et al. | May 1989 | A |
| 4872706 | Brewen et al. | Oct 1989 | A |
| 5064222 | Legault | Nov 1991 | A |
| 5471925 | Heinrich et al. | Dec 1995 | A |
| 5528339 | Buhr et al. | Jun 1996 | A |
| 5617519 | Herbert | Apr 1997 | A |
| 5717597 | Kara | Feb 1998 | A |
| 5724245 | Maher et al. | Mar 1998 | A |
| 5778076 | Kara et al. | Jul 1998 | A |
| 5781438 | Lee et al. | Jul 1998 | A |
| 5801364 | Kara et al. | Sep 1998 | A |
| 5801944 | Kara | Sep 1998 | A |
| 5812991 | Kara | Sep 1998 | A |
| 5818724 | Brewster, Jr. et al. | Oct 1998 | A |
| 5819240 | Kara | Oct 1998 | A |
| 5825893 | Kara | Oct 1998 | A |
| 5836617 | Beaudoin et al. | Nov 1998 | A |
| 5852813 | Guenther et al. | Dec 1998 | A |
| 5873605 | Kaplan | Feb 1999 | A |
| 5912682 | Parkos | Jun 1999 | A |
| 5923406 | Brasington et al. | Jul 1999 | A |
| 5978781 | Sansone | Nov 1999 | A |
| 5987441 | Lee et al. | Nov 1999 | A |
| 5991409 | Windel et al. | Nov 1999 | A |
| 6009416 | Pintsov | Dec 1999 | A |
| 6013878 | Schwartz et al. | Jan 2000 | A |
| 6045206 | Igval | Apr 2000 | A |
| 6079327 | Sarada | Jun 2000 | A |
| 6209923 | Thaxton et al. | Apr 2001 | B1 |
| 6240196 | Fischer et al. | May 2001 | B1 |
| Number | Date | Country |
|---|---|---|
| 2177368 | Jun 1995 | CA |
| 2239382 | Jun 1997 | CA |
| 2241778 | Dec 1998 | CA |
| 2181349 | Feb 1999 | CA |
| 2344472 | May 2000 | CA |
| Entry |
|---|
| Thomas Antognini, Ph.D., and Walter Antoginini, J.D.,; A Flexibly Configurable 2D Bar Code; pp. 1-29. Month and year missing. |