Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5777830 | Belt-driven tape cartridge having increased tape capacity | Andrew Wrobel, James A. Eggebeen | 1998-07-07 |
| D310368 | Wireless microphone | Donald A. Kutz | 1990-09-04 |
| 4875233 | Headset construction and method of making same | David Rose | 1989-10-17 |
| 4815143 | Wireless microphone | Donald A. Kutz | 1989-03-21 |