Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9453900 | Method and apparatus for three dimensional wavenumber-frequency analysis | David L. Graham, Dane E. Reiner | 2016-09-27 |
| 7740104 | Multiple resonator attenuating earplug | John W. Parkins | 2010-06-22 |