| Number | Name | Date | Kind |
|---|---|---|---|
| 5802518 | Karaev et al. | Sep 1998 | A |
| 5826265 | Van Huben et al. | Oct 1998 | A |
| 5838965 | Kavanagh et al. | Nov 1998 | A |
| 5873076 | Barr et al. | Feb 1999 | A |
| 5875446 | Brown et al. | Feb 1999 | A |
| 5913208 | Brown et al. | Jun 1999 | A |
| 5987457 | Ballard | Nov 1999 | A |
| 6035297 | Van Huben et al. | Mar 2000 | A |
| 6078914 | Redfern | Jun 2000 | A |
| 6078917 | Paulsen et al. | Jun 2000 | A |
| 6144958 | Ortega et al. | Nov 2000 | A |
| 6249784 | Macke et al. | Jun 2001 | B1 |
| 6311178 | Bi et al. | Oct 2001 | B1 |
| 6336117 | Massarani | Jan 2002 | B1 |
| 6338059 | Fields et al. | Jan 2002 | B1 |
| 6401118 | Thomas | Jun 2002 | B1 |
| Entry |
|---|
| Proquest Direct Quick Reference, UMI, ProQuest Direct 2.0, Aug. 1998. pp. 1-6. |