Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12377443 | Recovery of higher volume and higher quality recyclables from a mixed stream | Prabhu Soundarrajan, John Joseph Riconosciuto, David E. Call, Zhenni Niu | 2025-08-05 |
| 11998953 | Recovery of higher volume and higher quality recyclables from a mixed stream | Prabhu Soun Dar Rajan, John Joseph Riconosciuto, David E. Call, Zhenni Niu | 2024-06-04 |
| 8400888 | Personal digital stereo player having controllable touch screen | Michael J. Kelley | 2013-03-19 |
| 7933171 | Personal digital stereo player | Michael J. Kelley | 2011-04-26 |
| 7817502 | Method of using a personal digital stereo player | Michael J. Kelley | 2010-10-19 |
| 7289393 | Music jukebox | Michael J. Kelley | 2007-10-30 |
| 6621768 | Compact disc recorder | Michael J. Kelley | 2003-09-16 |
| 6618462 | Digital frequency divider | John M. Ross | 2003-09-09 |
| 6587403 | Music jukebox | Michael J. Kelley | 2003-07-01 |
| 6587404 | Optical storage device capable of recording a set of sound tracks on a compact disc | Michael J. Kelley, Rimas Buntinas, John Lahr | 2003-07-01 |
| 6172948 | Optical storage device | Michael J. Kelley | 2001-01-09 |
| 5706740 | Tree shelf | — | 1998-01-13 |