Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8121320 | Hearing aid | Walter P. Sjursen, Michael DeSalvo, Alyssa R. Needleman, Paul Mulhauser, Karl D. Kirk, III +2 more | 2012-02-21 |
| 8121326 | Hearing aid | Walter P. Sjursen, Michael DeSalvo, Paul Mulhauser, Karl D. Kirk, III | 2012-02-21 |
| 8121327 | Hearing aid | Walter P. Sjursen, Michael DeSalvo, Paul Mulhauser, Karl D. Kirk, III | 2012-02-21 |
| D650080 | Hearing aid part | Walter P. Sjursen, Michael DeSalvo, Paul Mulhauser, Kyungmin Lee, Daniel Nelsen +2 more | 2011-12-06 |
| 7756284 | Hearing aid circuit with integrated switch and battery | Walter P. Sjursen, Michael DeSalvo, Paul Mulhauser, Karl D. Kirk, III | 2010-07-13 |
| D605769 | Hearing aid part | Walter P. Sjursen, Michael DeSalvo, Alyssa R. Needleman | 2009-12-08 |
| D605292 | Hearing aid earpiece | Walter P. Sjursen, Michael DeSalvo, Alyssa R. Needleman | 2009-12-01 |
| D554756 | Hearing aid | Walter P. Sjursen, Michael DeSalvo, Paul Mulhauser, Karl D. Kirk, III | 2007-11-06 |