Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9972292 | Precision drum hoop devices and methods | — | 2018-05-15 |
| 9390692 | Precision true hoop for drum | — | 2016-07-12 |
| 8563841 | Safety hoop for drum | — | 2013-10-22 |
| 8143507 | Adjusting device for snare drum | Richard A. Sikra | 2012-03-27 |
| 7942176 | Drum shell formation | — | 2011-05-17 |
| 7902444 | Magnetic and adjustable throw-off for snare drum | Richard A. Sikra | 2011-03-08 |
| 7812236 | One-piece wooden drum shell formation | — | 2010-10-12 |
| 7718876 | Angled grain drum shell ply configuration | — | 2010-05-18 |
| 6518490 | Drum head with sound attenuating center coating | — | 2003-02-11 |
| 6028259 | Weighting of drum pedal apparatus | Donald G. Lombardi | 2000-02-22 |
| 5920021 | Drum head with sound attenuating annular coating | — | 1999-07-06 |
| 5377576 | Drum construction having wood and metal wall sections | Donald G. Lombardi | 1995-01-03 |