Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D717938 | Earplug | Phillip Brent Duncan, Michael R. Moussa | 2014-11-18 |
| 8770338 | Earpieces, systems, and methods | Phillip Brent Duncan, Michael R. Moussa | 2014-07-08 |
| 7874929 | System and method for training a golf club stroke | Ralph J. Blanchard | 2011-01-25 |
| 4576114 | Crystal plating slug apparatus | Alan Edward Kaplan | 1986-03-18 |