Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8928459 | Precision location methods and systems | David Cyganski, R. James Duckworth, William R. Michalson | 2015-01-06 |
| 7292189 | Methods and apparatus for high resolution positioning | William R. Michalson, David Cyganski, R. James Duckworth | 2007-11-06 |
| 5259010 | Replacement spacer pin with locking keys | Steve K. Brown, Larry D. Dixon | 1993-11-02 |