JS

John R. Sparkes

RS Retech Systems: 1 patents #5 of 11Top 50%
Overall (All Time): #3,557,833 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6452129 Plasma torch preventing gas backflows into the torch Wenxian Zhu, Richard C. Eschenbach, Robin A. Lampson 2002-09-17