Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5194684 | Method and apparatus for selective reduction of upper harmonic content in digital synthesizer excitation signals | Ronald J. Lisle | 1993-03-16 |
| 5054360 | Method and apparatus for simultaneous output of digital audio and midi synthesized music | Ronald J. Lisle, Michael David Wilkes | 1991-10-08 |