Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5930209 | Optical disc with sector address irregularities to prevent copying, and apparatus for recording and detecting such copy protection | Uwe Spitzenberger | 1999-07-27 |
| 4695129 | Viewer having head mounted display unit for cinerama pictures | Giok D. Khoe | 1987-09-22 |