Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D932458 | Bamboo amplifier and holder | John P. Yang | 2021-10-05 |
| 10299040 | System for increasing perceived loudness of speakers | Richard J. Oliver, Robert C. Maling, III, Aaron Warner | 2019-05-21 |
| 9820044 | System for increasing perceived loudness of speakers | Richard J. Oliver, Robert C. Maling, III | 2017-11-14 |
| 9232312 | Multi-channel audio enhancement system | Hideaki Kato, Alan D. Kraemer | 2016-01-05 |
| 8538042 | System for increasing perceived loudness of speakers | Richard J. Oliver, Robert C. Maling, III | 2013-09-17 |
| 8509464 | Multi-channel audio enhancement system | Hideaki Kato, Alan D. Kraemer | 2013-08-13 |
| 8050434 | Multi-channel audio enhancement system | Hideaki Kato, Alan Kraemer | 2011-11-01 |