MJ

Mark A. Justman

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #3,635,007 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6153005 Foamed concrete composition and process Charles D. Welker, Martha A. Welker, Mark Welker, Randy S. Hendricksen 2000-11-28