RH

Ronald Van Hal

Schlumberger Technology: 2 patents #2,609 of 7,293Top 40%
Overall (All Time): #2,110,427 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7993604 Spectroscopic pH measurement using optimized mixtures of reagents to extend measurement range Bhavani Raghuraman, Gale Gustavson, Emilie Dressaire, Oleg Zhdaneev, Oliver C. Mullins +1 more 2011-08-09
7432109 Spetroscopic pH measurement using optimized mixtures of reagents to extend measurement range Bhavani Raghuraman, Gale Gustavson, Emilie Dressaire, Oleg Zhdaneev, Oliver C. Mullins +1 more 2008-10-07