Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6118876 | Surround sound speaker system for improved spatial effects | — | 2000-09-12 |
| 5930370 | In-home theater surround sound speaker system | — | 1999-07-27 |
| 5708719 | In-home theater surround sound speaker system | Hal P. Greenberger, William Clack | 1998-01-13 |