Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8556735 | Universal joint | Michael Dorfman | 2013-10-15 |
| 8278541 | Drum pedal with optical sensor | Michael Dorfman, Thomas Baker, Alexander Moon | 2012-10-02 |
| 7633000 | U-joint for double pedal | Michael Dorfman, Robert Szwaya | 2009-12-15 |
| 7456351 | Drum pedal | Michael Dorfman, Robert Szwaya | 2008-11-25 |
| 7211720 | Adjustable bass drum beater | Michael Dorfman, Robert Szwaya | 2007-05-01 |
| 6846978 | Strainer for a drum | Michael Dorfman, Robert Szwaya | 2005-01-25 |