Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6233225 | Line coding mismatch detection technique | David J. Antonello, David L. Carter, Nino Girardi, Robert J. Hofmann, Michael Lutz +1 more | 2001-05-15 |
| 6154523 | Method and system for linking a toll switch | Robert J. Hofmann, Douglas Jones, Michael Lutz | 2000-11-28 |