Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8604752 | Portable battery charging and audio unit | Steven W. Cole, Ravi Voruganti, Kam Chow Cheung | 2013-12-10 |
| D511136 | Portable battery charging and audio unit | Wolfgang Hirschburger, Randall Coe, Steven W. Cole | 2005-11-01 |