Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6854350 | Calibrated custom instrument gauge module and means for assembly | — | 2005-02-15 |
| 6404333 | Gauge instrument for use in a motor vehicle | John A. Ayres, Thomas Blossom | 2002-06-11 |
| 6323637 | Miniature crossed coil gauge having an active flux ring | John A. Ayres, David L. Ehle, Michael E. Salmon | 2001-11-27 |
| 6317037 | Virtual instrument panel | Douglas R. Hall | 2001-11-13 |
| 6141881 | Electronic analogue compass | John A. Ayres, Douglas R. Hall | 2000-11-07 |
| 6046583 | Miniature crossed coil gauge having an active flux ring | John A. Ayres, David L. Ehle, Michael E. Salmon | 2000-04-04 |
| 5686832 | Miniature crossed coil gauge having an active flux ring | John A. Ayres, David L. Ehle, Michael E. Salmon | 1997-11-11 |