Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D484609 | Box culvert | Dan W. Harrington, J. Patrick Sheehan | 2003-12-30 |
| 5874891 | Alarm system for use on a bus | — | 1999-02-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D484609 | Box culvert | Dan W. Harrington, J. Patrick Sheehan | 2003-12-30 |
| 5874891 | Alarm system for use on a bus | — | 1999-02-23 |