Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9612348 | Digital air gun | William Allen Nance | 2017-04-04 |
| 8509033 | Digital air gun | William Allen Nance | 2013-08-13 |
| 8279711 | Digital air gun | William Allen Nance | 2012-10-02 |
| 6967807 | Selecting physical cylinders in a disc drive employing discs with pre-written servo patterns | Chris Settje, David L. Schell, Teck Khoon Lim, Patrick TaiHeng Wong, Beng Wee Quak +2 more | 2005-11-22 |
| 6456452 | Feed forward compensation for repeatable head position error in a disc drive | Philip R. Woods | 2002-09-24 |
| 5889631 | Detecting a track tear servo defect condition in a hard disc drive | — | 1999-03-30 |
| 5870243 | Servo frame defect mapping in a hard disc drive | Anish A. Ukani | 1999-02-09 |
| 5760990 | Servo position error signal calibration in a hard disc drive | Anish A. Ukani, Lealon R. McKenzie | 1998-06-02 |
| 5654841 | Detection of mechanical defects in a disc drive using injected test signals | Wayne Lawrence Felts, Randall D. Hampshire | 1997-08-05 |