Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33559 | System for enhancing audio and/or visual presentation | Joe Truchsess | 1991-03-26 |
| 4771344 | System for enhancing audio and/or visual presentation | Joe Truchsess | 1988-09-13 |