Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9621224 | Portable audio networking system | Ryan Jerold Perkofski, David F. Cerra, William J. Oakley | 2017-04-11 |
| 9094755 | Audio monitoring system and selection of stored transmission data | Junjie Gu, Ryan Jerold Perkofski, Nick Wood, Mike Nagel, Mark Manthei | 2015-07-28 |