Issued Patents All Time
Showing 26–50 of 98 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8249285 | Method and apparatus for producing non linear sound attenuation | Ron Scicluna | 2012-08-21 |
| 8184839 | One-size-fits-most hearing aid | Gail Gudmundsen, Viorel Drambarean, Jonathan K. Stewart | 2012-05-22 |
| 8160284 | Amplification circuit and hearing aid | William A. Johnson | 2012-04-17 |
| 8107665 | Insert earphone using a moving coil driver | Andrew J. Haapapuro, Viorel Drambarean | 2012-01-31 |
| 8091680 | Acoustic resistor for hearing improvement and audiometric applications, and method of making same | Andrew J. Haapapuro | 2012-01-10 |
| 8019386 | Companion microphone system and method | William Frank Dunn, Andrew J. Haapapuro, Viorel Drambarean | 2011-09-13 |
| 7991179 | High fidelity noise-excluding earphones with ergonomically designed construction | Viorel Drambarean, Andrew J. Haapapuro | 2011-08-02 |
| 7913565 | Method and system for predicting long-term exposure to a hazardous environment | Jack Goldberg, Thomas V. Fantasia | 2011-03-29 |
| 7882743 | Method and system for noise dosimeter | Jack Goldberg, Gregory A. Flamme, Dana S. Helmink | 2011-02-08 |
| 7881486 | Directional microphone assembly | Robert B. Schulein, Timothy S. Monroe, Viorel Drambarean, Andrew J. Haapapuro, John S. French | 2011-02-01 |
| 7836771 | Method and system for an ultra low power dosimeter | — | 2010-11-23 |
| 7837005 | Mushroom-shaped push-in foam eartip for use with high-fidelity insert earphones | — | 2010-11-23 |
| 7836770 | Method and system for noise dosimeter with quick-check mode and earphone adapter | Jack Goldberg, Gregory A. Flamme, Dana S. Helmink | 2010-11-23 |
| 7832080 | Directional microphone assembly | Robert B. Schulein, Timothy S. Monroe, Viorel Drambarean, Andrew J. Haapapuro, John S. French | 2010-11-16 |
| 7697705 | High fidelity digital hearing aid and methods of programming and operating same | John S. French, Steven Viranyi, Timothy S. Monroe, David A. Preves, Norman P. Matzen +1 more | 2010-04-13 |
| 7590253 | Hearing aid having switchable first and second order directional responses | — | 2009-09-15 |
| 7574007 | Stimulus analysis system and method having adaptive artifact rejection | Gregory R. Shaw | 2009-08-11 |
| 7555134 | Antenna for miniature wireless devices and improved wireless earphones supported entirely by the ear canal | William Frank Dunn, Timothy Milam, Kelly Kodama, Viorel Drambarean, David M. Friesema | 2009-06-30 |
| 7551940 | Two-way voice communication device having external acoustic noise reduction | Mary Paulson, Jonathan K. Stewart, Andrew J. Haapapuro, Viorel Drambarean, Robert B. Schulein | 2009-06-23 |
| 7286677 | Directional microphone assembly | Robert B. Schulein, Timothy S. Monroe, Viorel Drambarean, Andrew J. Haapapuro, John S. French | 2007-10-23 |
| 7269262 | Hearing test apparatus and method having automatic starting functionality | Steven J. Iseberg, Gregory R. Shaw, Erik C. Gundersen, Laurel Christensen | 2007-09-11 |
| D550200 | Earphone | Viorel Drambarean, Andrew J. Haapapuro | 2007-09-04 |
| D550201 | Earphone | Viorel Drambarean, Andrew J. Haapapuro | 2007-09-04 |
| 7245728 | Microphone for hearing aid and communications applications having switchable polar and frequency response characteristics | Robert B. Schulein, Elmer V. Carlson, Viorel Drambarean | 2007-07-17 |
| D542773 | High fidelity noise excluding earphones with ergonomically designed construction | Viorel Drambarean, Andrew J. Haapapuro | 2007-05-15 |