Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576855 | Rocker switch | Marina Levendis, Dana Scribner, Steven David Mayer | 2003-06-10 |
| 5841359 | Visual alarm gauge | — | 1998-11-24 |
| D378284 | Liquid level sender | David P. Riegel, John A. Roser | 1997-03-04 |
| D361043 | Signalling panel meter | — | 1995-08-08 |
| D308646 | Carbon monoxide detector | — | 1990-06-19 |
| D305888 | Portable radiotelephone unit | Ernest M. Bevilacqua, Nathan D. Ehrlich, Anthony D. Franks, Wen-Jeng Li, Arthur B. Nichols | 1990-02-06 |
| 4860223 | Carbon monoxide health hazard monitor | — | 1989-08-22 |
| 4644512 | Sonar depth finder with relative depth LCD display | — | 1987-02-17 |
| D286384 | Depth sounder | — | 1986-10-28 |