DF

David R. Friddell

General Motors: 2 patents #302 of 1,582Top 20%
📍 Grand Blanc, MI: #4 of 40 inventorsTop 10%
🗺 Michigan: #847 of 6,781 inventorsTop 15%
Overall (2011): #105,674 of 364,097Top 30%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8061179 High pressure dual-action hydraulic pump David R. Jensen, Mike M. Ghiran, Ranny Joe Nunley, William M. Crantas, Kevin R. Marks +1 more 2011-11-22
7937979 Gravity fill system with pressure check valve Mike M. Ghiran, Ranny Joe Nunley, William M. Crantas, Kevin R. Marks, David R. Jensen +1 more 2011-05-10