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David N. Ferrence

UTUtdc: 3 patents #2 of 20Top 10%

Overall (All Time): #1,659,754 of 4,157,543Top 40%

3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5131713	Vehicle for a freight transportation system	—	1992-07-21
5078566	Freight discharge apparatus	—	1992-01-07
5015141	Freight transportation system	—	1991-05-14