Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D376364 | Loudspeaker | Allen Boothroyd | 1996-12-10 |
| 5537480 | Sound output system | Allen Boothroyd | 1996-07-16 |
| D348467 | Loudspeaker | Allen Boothroyd | 1994-07-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D376364 | Loudspeaker | Allen Boothroyd | 1996-12-10 |
| 5537480 | Sound output system | Allen Boothroyd | 1996-07-16 |
| D348467 | Loudspeaker | Allen Boothroyd | 1994-07-05 |