RJ

Robert Graham Jeffrey

Overall (All Time): #1,501,943 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9243495 Tool and method for initiating hydraulic fracturing Anthony Charles Coleman 2016-01-26
9222337 Hydraulic fracturing Andrew P. Bunger, Xi Zhang, James Kear 2015-12-29
6123394 Hydraulic fracturing of ore bodies 2000-09-26