Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7667117 | Musical instrument piston valve | Clifford Blackburn | 2010-02-23 |
| 7420109 | Musical instrument tone hole forming tool and method | Bohumir Zmrzly | 2008-09-02 |
| D409370 | Reed holder | — | 1999-05-11 |
| 5469771 | Pad for closing a tone hole in a musical instrument | — | 1995-11-28 |
| 5381718 | Process for magnetically seating a tone hole pad | — | 1995-01-17 |
| 5339719 | Process for seating a tone hole pad | — | 1994-08-23 |
| 5297466 | Tone hole pad and process for magnetically seating same | — | 1994-03-29 |
| 5183954 | Cushion for a tone hole pad | — | 1993-02-02 |
| 4967632 | Pad with impression memory | Robert Etheredge | 1990-11-06 |