Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7779497 | Multi-function package opener | Scott Pyle, Michael Milton Sherman | 2010-08-24 |
| 7007731 | Base frame for fixture | Hsu Hsiu-Kwei Liu | 2006-03-07 |
| 6532782 | Detachable lock core | — | 2003-03-18 |
| 6418765 | Motor-driven lock | — | 2002-07-16 |
| 5532895 | Overload protection device | — | 1996-07-02 |