Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8019386 | Companion microphone system and method | William Frank Dunn, Mead C. Killion, Andrew J. Haapapuro | 2011-09-13 |
| 7991179 | High fidelity noise-excluding earphones with ergonomically designed construction | Andrew J. Haapapuro, Mead C. Killion | 2011-08-02 |
| 7881486 | Directional microphone assembly | Mead C. Killion, Robert B. Schulein, Timothy S. Monroe, Andrew J. Haapapuro, John S. French | 2011-02-01 |