Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7471479 | System for protection against copying on magnetic tape recorders | Baolin Tan | 2008-12-30 |
| 6882490 | System for protection against copying on magnetic tape recorders | Baolin Tan | 2005-04-19 |