Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8615097 | Waveguide electroacoustical transducing | Robert Preston Parker, Eric J. Freeman | 2013-12-24 |
| 8351629 | Waveguide electroacoustical transducing | Robert Preston Parker, Eric J. Freeman | 2013-01-08 |
| 7623670 | Waveguide electroacoustical transducing | John H. Wendell, Robert Preston Parker, Thomas A. Froeschle, William P. Schreiber | 2009-11-24 |
| 6931143 | Thin enclosure electroacoustical transducing | Gerald F. Caron, Christopher B. Ickler, Roberto Maria Dizon | 2005-08-16 |
| 6771787 | Waveguide electroacoustical transducing | John H. Wendell, Robert Preston Parker, Thomas A. Froeschle, William P. Schreiber | 2004-08-03 |