Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7134663 | Three-dimensional archery target with multiple vital target areas | Edwin J. Beckman | 2006-11-14 |
| 6859430 | Protection switching of virtual connections | George N. Frank, Dan Zheng, Michael A. D'Jamoos, Richard Lee McKinney | 2005-02-22 |
| 6433988 | Method and apparatus for protection switching | Dale Moore | 2002-08-13 |
| 6233221 | System and method for a ring network with virtual path connections | Dan Zheng | 2001-05-15 |
| 6008734 | Method and system for diminishing phase shift between two signals | — | 1999-12-28 |