Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8614933 | Optical unit protection on a thermally-assisted magnetic recording head | Erhard Schreck, Xuhui Jin | 2013-12-24 |
| D394499 | Portable coolant reconditioning unit | William F. Bettag, Ronald W. Lyon | 1998-05-19 |
| D378524 | Portable coolant reconditioning system | William F. Bettag, Ronald W. Lyon | 1997-03-18 |