Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9207339 | Optical seismic sensor systems and methods | A Craig Beal, Malcolm Cummings, Anton Zavriyev, Caleb A Christensen | 2015-12-08 |
| 6993905 | Oil hydraulic cylinder | Kyung-Han Min, Myung-Yong Hwang | 2006-02-07 |
| 5784354 | Optical pickup device | — | 1998-07-21 |
| 5640280 | Objective lens driving device for an optical pickup | — | 1997-06-17 |