Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7421334 | Centralized facility and intelligent on-board vehicle platform for collecting, analyzing and distributing information relating to transportation infrastructure and conditions | Darwin Dahlgren, Nicoline Dahlgren, Dean Dahlgren, Tah Wei Chao, Michael R. Fritsch +1 more | 2008-09-02 |
| 5472307 | Wheelchair tilt lift | Keith E. Granberg, William J. Feirn, Jerald J. Olson, Jonathan A. Kadlec | 1995-12-05 |