Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351276 | Digital/audio interactive communication network | William J. Doll, Jr., Albert H. Kirchner, III, Thomas J. Krier, Rudolph M. McVicker, Brian E. Monroe +5 more | 1994-09-27 |
| 5127003 | Digital/audio interactive communication network | William J. Doll, Jr., Albert H. Kirchner, III, Thomas J. Krier, Meldon L. Pettitt, Danny R. Reiswig +2 more | 1992-06-30 |
| 4456943 | Current sensing relay | — | 1984-06-26 |