Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6929014 | Method and apparatus for single disc ultrasonic cleaning | John Edgar Sheffield | 2005-08-16 |
| 6619305 | Apparatus for single disc ultrasonic cleaning | John Edgar Sheffield | 2003-09-16 |
| 6394105 | Integrated laser cleaning and inspection system for rigid thin film media for magnetic recording application | Istvan McClain Boszormenyi, Rajiv Yadav Ranjan | 2002-05-28 |