Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11758374 | Traveler's scale | — | 2023-09-12 |
| 8311254 | Speaker system | Eric Langberg | 2012-11-13 |
| D631465 | Sensing and speaking pen | Xun Zhang | 2011-01-25 |
| 7747872 | Secure portable electronic reference device | Kurt A. Goszyk, Edward Skladany, Gregory J. Winsky, Duane Ellis, Jan Edler | 2010-06-29 |