Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8947802 | Methods and systems for magnetic media servo writing | Douglas W. Johnson, Stephen J. Rothermel | 2015-02-03 |
| 8643968 | Methods and systems for magnetic media servo writing | Douglas W. Johnson, Stephen J. Rothermel | 2014-02-04 |