Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6160213 | Electronic music instrument system with musical keyboard | Rob C. Arnold, Warren W. Westlund, II, David Van Koevering, Robert D. Lawson, Lance Lyda +3 more | 2000-12-12 |
| 5908997 | Electronic music instrument system with musical keyboard | Rob C. Arnold, Warren W. Westlund, II, David Van Koevering, Robert D. Lawson, Lance Lyda +3 more | 1999-06-01 |