Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6388564 | Power distribution grid communication system | John Cecil Kuurstra, Andrew A. Cullen, III | 2002-05-14 |
| 6157292 | Power distribution grid communication system | John Cecil Kuurstra, Andrew A. Cullen, III | 2000-12-05 |