Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6236639 | Cartridge for disk-shaped storage medium having novel internal walls | Donald W. Selg, Steven E. Turch, Walter Halberg | 2001-05-22 |
| 5864534 | Optical data storage disc having low-profile hub | John W. Swanson | 1999-01-26 |
| D311182 | Optical disk cartridge | James E. Nash, David C. Byram | 1990-10-09 |
| 4943880 | Disk locking mechanism for disk cartridge | Robert A. Muehlhausen | 1990-07-24 |