DF

David R. Friddell

General Motors: 4 patents #3,733 of 18,328Top 25%
Overall (All Time): #1,238,177 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

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
7584637 Bending apparatus and method of bending a metal object Mike M. Ghiran, Spyros P. Mellas, William M. Crantas, Kevin R. Marks, Paul D. Larsen 2009-09-08
7360385 Quick change bend tooling bolster Douglas T. Wohlenhaus, Arturo Martinez, Michael H. Lovell, Mark A. Cline 2008-04-22