Devices descending from K854903
8 later devices reach Gordon Diagnostic System Model I through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K170082 | Test of Variables of Attention (T.O.V.A.) Version 9.0 | The Tova Company | 2017 | 0 | — |
| +1 | K020800 | Optax System | Optax Systems, Inc. | 2002 | 6 | — |
| +2 | K040894 | Qbtest | Qbtech AB | 2004 | 5 | — |
| +3 | K122149 | QBTES | Qbtech AB | 2012 | 4 | — |
| +4 | K141865 | DANA | Anthrotronix, Inc. | 2014 | 0 | — |
| +4 | K133382 | QB Test | Qbtech AB | 2014 | 2 | — |
| +5 | K173915 | Test of Variables of Attention (T.O.V.A.) | The Tova Company | 2018 | 0 | — |
| +5 | K143468 | QbCheck | Qbtech AB | 2016 | 0 | — |