Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7667545 | Automatic calibration lock loop circuit and method having improved lock time | David Schlueter | 2010-02-23 |
| 7595699 | Look loop circuit and method having improved lock time | David Schlueter | 2009-09-29 |
| 4739686 | Apparatus for holding a harmonica | — | 1988-04-26 |