DP

Donald E. Porterfield

BE Backer Ehp: 2 patents #12 of 15Top 80%
AP Advanced Distributor Products: 1 patents #10 of 18Top 60%
Overall (All Time): #1,513,009 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9504097 Full support heating element apparatus Lucas L. Fowler, Rickey James Schexnayder 2016-11-22
8571395 Track system for heater assembly Jerry L. Hensley, Charles T. Whitfield 2013-10-29
6950606 Air conditioning apparatus with blower and electric heater in common housing Colby Logan, Jerry L. Hensley, James W. Pickle 2005-09-27