Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7705228 | Shoulder marching tuba | Michael Kamphuis | 2010-04-27 |
| 7504571 | Shoulder marching tuba with view left | Michael Kamphuis | 2009-03-17 |
| 5361668 | Valve for brass instrument | James H. Andersen, Lawrence Ramirez, Michael W. Suter | 1994-11-08 |