Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8494815 | Method of designing a sound waveguide surface | David J. Murphy, Richard Christie Morgans, Colin Henry Hansen | 2013-07-23 |
| 6041125 | Active acoustic wall | Masaharu Nishimura, Keizo Ohnishi, Chiaki Yasuda, Shinichiro Kajii, William P. Patrick | 2000-03-21 |