Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9003659 | Method of retrofitting a harmonica | — | 2015-04-14 |
| 8993863 | Harmonica and technology for retrofitting harmonica | — | 2015-03-31 |
| 8847050 | Harmonica and technology for retrofitting harmonica | — | 2014-09-30 |
| 8426713 | Type piano | — | 2013-04-23 |
| 8328652 | Cue tip chalk block saver | — | 2012-12-11 |
| 8222506 | Harmonica teaching system | — | 2012-07-17 |
| 5697852 | Method and means for packaging cue tip chalk | Michael L. Adelson | 1997-12-16 |