RT

Robert D. Thiessen

ST Sclumberger Technology: 1 patents #1 of 35Top 3%
Overall (All Time): #3,556,713 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6446727 Process for hydraulically fracturing oil and gas wells Warren Zemlak, Stephen P. Lemp 2002-09-10