Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8579056 | Spiral drive and transport device using the same | — | 2013-11-12 |
| 8520165 | Optical film laminates | Stephen A. Johnson, Ji Hyung Kim, Byung-Soo Ko, Ji-Hwa Lee, Yufeng Liu | 2013-08-27 |
| 6879609 | Silicate glass for upconversion fluorescence | Craig R. Schardt, Mark T. Anderson, James Onstott | 2005-04-12 |
| 5121699 | Reclamation method and apparatus for soil and other products | — | 1992-06-16 |
| 4558525 | Dehydration equipment | Wilfried P. Duske | 1985-12-17 |
| 4357152 | Fluid borne particulate separator | Wilfried P. Duske | 1982-11-02 |