Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12356168 | Loudspeaker cone with raised curved protrusions and methods for controlling resonant modes | Stuart W. Lumsden | 2025-07-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12356168 | Loudspeaker cone with raised curved protrusions and methods for controlling resonant modes | Stuart W. Lumsden | 2025-07-08 |