Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6226441 | Multipurpose digital recording method and apparatus and media therefor | Steven F. Hartung | 2001-05-01 | $808,000 |
| 5995306 | Handling defective frames on hard sectored magnetic tape | Steven F. Hartung, Daniel J. Canterbury, Mark R. Ayres | 1999-11-30 | $3,166,000 |