Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10714062 | Tensioning system for vibrating membranes | Patrick B. Auell | 2020-07-14 |
| D889534 | Drum head tensioning bracket | Patrick B. Auell | 2020-07-07 |
| D875171 | Drum claw | Patrick B. Auell | 2020-02-11 |
| D875172 | Drum hoop bracket | Patrick B. Auell | 2020-02-11 |