Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258471 | Master media for anhysteretic recording | Robert O. James, Joseph A. Verdone | 2001-07-10 |
| 5230818 | Coating compositions for master media for anhysteretic recording | Robert O. James, Joseph A. Verdone | 1993-07-27 |