Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5472150 | Balanced reel hub for tape cassette reels | Jeffrey T. Gibbs | 1995-12-05 |
| 5345355 | Slack limiting tab for a magnetic tape cassette | Qing Cai | 1994-09-06 |
| 5328117 | Reel pressure button for tape reels | Robert L. Hanson | 1994-07-12 |
| 5132862 | Erasure preventing button with a planar surface to control inadvertent sliding for tape cassettes | John A. Heveron | 1992-07-21 |
| 5089924 | Tape cassette with wear pad comprising polyolefin sheet and polyamide adhesive layer | Ramon F. Hegel | 1992-02-18 |
| 4670809 | Door hinge for a videocassette | — | 1987-06-02 |