KM

Keith Michael

WE Weatherford/Lamb: 1 patents #476 of 852Top 60%
Bank of America: 1 patents #2,766 of 5,361Top 55%
Overall (All Time): #751,884 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7588612 Mobile nitrogen generation device Herman Theodore Marwitz, Terry Wheaton, Brian Chung, David Scheierl, James Yang 2009-09-15
6443245 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations 2002-09-03
6206113 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations apparatus 2001-03-27
6041873 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations 2000-03-28
5862869 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations 1999-01-26
5749422 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations 1998-05-12
5388650 Non-cryogenic production of nitrogen for on-site injection in downhole drilling 1995-02-14