Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6453045 | Telecommunication device with piezo-electric transducer for handsfree and private operating modes | Thomas Gitzinger, Michael L. Charlier | 2002-09-17 |
| 6363139 | Omnidirectional ultrasonic communication system | Aaron L. Dietrich, Michael L. Charlier | 2002-03-26 |