Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12424204 | Speech recognition hearing device with multiple supportive detection inputs | — | 2025-09-23 |
| 12375861 | Assisted hearing aid with synthetic substitution | — | 2025-07-29 |
| 11528568 | Assisted hearing aid with synthetic substitution | — | 2022-12-13 |
| 10791404 | Assisted hearing aid with synthetic substitution | — | 2020-09-29 |
| 8841844 | Intelligent decorative displays with ambient electromagnetic field switching | Robert C. Neuman | 2014-09-23 |
| 8534534 | Integrated tab file system | Duane Christensen | 2013-09-17 |
| 8471482 | Intelligent decorative displays with ambient electromagnetic field switching | Robert C. Neuman | 2013-06-25 |
| 8104669 | Strengthened folder with inserted elements and system for element interchangeability | Duane Christensen | 2012-01-31 |
| 7973486 | Intelligent decorative displays with ambient electromagnetic field switching | Robert C. Neuman | 2011-07-05 |
| 7850062 | Integrated tab file system | Duane Christensen | 2010-12-14 |
| 7310420 | Telephone headset amplifier with noise blanking capability | Robert E. Lucey | 2007-12-18 |
| 6672792 | Tube fastener apparatus | Ralph L. Schipani, Richard K. Strayer, Lee T. Egbert | 2004-01-06 |
| 5713682 | Paper handling device | Dennis Gary Clark, Steven Charles Black, Duane Christensen | 1998-02-03 |