Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576829 | Electronic percussion instrument with transducer soldering connection protection | — | 2003-06-10 |
| 5915289 | Electronic cymbal apparatus | — | 1999-06-22 |
| 5415456 | Collapsible baby chair apparatus | David L. Gerrard | 1995-05-16 |
| D319650 | Electronic drum or similar article | — | 1991-09-03 |
| 4965820 | Cellular telephone apparatus | Robin Sharpe, Petrus P. Van de Mortel | 1990-10-23 |
| 4441159 | Digital adder circuit for binary-coded numbers of radix other than a power of two | — | 1984-04-03 |