Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11348568 | Reactive silent speaker device for simulating harmonic nonlinearities of a loudspeaker | Robert Andrew Schoonraad | 2022-05-31 |
| 10984763 | Stringed instrument machine head adapter | Robert Andrew Schoonraad | 2021-04-20 |
| 10741152 | Wearable drumstick holder providing tear-away retrieval and integrated practice pad | Michael A. Shahinian | 2020-08-11 |