Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6040955 | Self servo writing file | Dana H. Brown, Thomas C. Christensen, Earl A. Cunningham | 2000-03-21 |
| 5949603 | Self servo writing file using the widest head | Dana H. Brown, Thomas C. Christensen, Earl A. Cunningham | 1999-09-07 |
| 5570247 | Self servo writing file | Dana H. Brown, Thomas C. Christensen, Earl A. Cunningham | 1996-10-29 |