Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7753060 | Cellular aqueous tube cleaning system and method | David M. Kozy, Kin Y. Wong, William R. Schell, David L. Wagner | 2010-07-13 |
| 7744700 | Aqueous tube cleaning apparatus and method | David M. Kozy, Wiliam R. Schell, Kin Y. Wong | 2010-06-29 |
| 7614937 | Cutting device and method of generating cutting geometry | — | 2009-11-10 |
| 7520287 | Aqueous tube cleaning apparatus and method | David M. Kozy, William R. Schell, Kin Y. Wong | 2009-04-21 |
| 6664499 | Tube and duct trim machine | Steve A. Brink, Noel A. Spishak, Stephen L. Sembritzky, William R. Schell, David M. Kozy +2 more | 2003-12-16 |
| 5590046 | Automated floor panel workcell | Thomas Q. Anderson, Garth W. Broadrick, Merrill A. Christianson, Daniel A. Hippe, Arthur T. Hughes +3 more | 1996-12-31 |
| 4890962 | Portable positive feed drill | — | 1990-01-02 |