Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11619539 | Inadvertent subsequent scan prevention for symbology reader with weighing platter | Christopher J. Fjellstad | 2023-04-04 |
| 7916890 | Ultra low frequency transducer and loud speaker comprising same | Steven M. Irby | 2011-03-29 |
| 6611604 | Ultra low frequency transducer and loud speaker comprising same | Steven M. Irby | 2003-08-26 |
| D473216 | Subwoofer surround and diaphragm assembly | Steven M. Irby | 2003-04-15 |
| D456386 | Subwoofer basket | Steven M. Irby | 2002-04-30 |
| D449293 | Speaker grill | Steven M. Irby | 2001-10-16 |