Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9488728 | Digital depth readout adapter for flasher type fish finder | Steven E. Baumann | 2016-11-08 |
| 7495997 | Light pipe display for sonar | — | 2009-02-24 |
| D507588 | Underwater camera | Paul Thorne, Raphael J. Marzean | 2005-07-19 |
| 6819629 | Method for distinguishing return echoes from noise | Raphael J. Marzean, Paul Thorne | 2004-11-16 |
| 6768701 | Flasher-type fish finder with zoom feature | Raphael J. Marzean, Paul Thorne | 2004-07-27 |
| D400450 | Dash mounted sonar depth indicator | Raphael J. Marzean, Gregory R. Johnson | 1998-11-03 |
| D394405 | Gimbal mounted sonar depth indicator | Raphael J. Marzean, Gregory R. Johnson | 1998-05-19 |
| 5459479 | Solid state depth locator having liquid crystal display | — | 1995-10-17 |