DM

David Mayfield

HE Hess Engineering: 6 patents #1 of 4Top 25%
LF L.B. Foster: 1 patents #8 of 30Top 30%
Overall (All Time): #572,025 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9238419 Conductor rail Korhan Ciloglu 2016-01-19
8225476 Method and apparatus for manufacturing a catalytic converter 2012-07-24
8122602 Sizing of mat material 2012-02-28
7963199 Vertical spinner Joseph Harry Krenz, Krishnathejan Akumalla 2011-06-21
7900352 Method and apparatus for manufacturing a catalytic converter 2011-03-08
7484297 Method and apparatus for manufacturing a catalytic converter 2009-02-03
6983632 Method and apparatus for spinning to a constant length 2006-01-10
6954988 Method and apparatus for manufacturing a catalytic converter 2005-10-18
D374115 Shape preserver brace for a baseball cap 1996-10-01