Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351302 | Analog sound track digitizer | George D. Carlsen, II | 2002-02-26 |
| 5025473 | Hemispherical speaker system | George D. Carlsen, II | 1991-06-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351302 | Analog sound track digitizer | George D. Carlsen, II | 2002-02-26 |
| 5025473 | Hemispherical speaker system | George D. Carlsen, II | 1991-06-18 |