Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10645516 | Variable acoustic loudspeaker system and control | Ulrich Horbach, Charles E. Hill | 2020-05-05 |
| 10631115 | Loudspeaker light assembly and control | Jason Walker, Charles E. Hill, Ulrich Horbach | 2020-04-21 |