FE

Frank E. Evans

Chevron: 4 patents #1,079 of 4,788Top 25%
ML M-I L.L.C.: 3 patents #78 of 369Top 25%
BH Baker Hughes Holdings: 2 patents #1,327 of 3,522Top 40%
MC M. I. Co.: 1 patents #35 of 116Top 35%
Overall (All Time): #510,558 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9598627 Fluid loss additives and methods of making and using same Jeffery R. Harris 2017-03-21
9353306 Viscoelastic surfactant based wellbore fluids and methods of use Charles Svoboda, LaTosha Moore 2016-05-31
9328280 Additives for oil-based drilling fluids Marshall D. Bishop, Willie P. Reneau, John E. Anderson 2016-05-03
9034800 Fluid loss additives and methods of making and using same Jeffery R. Harris 2015-05-19
8937034 Viscoelastic surfactant based wellbore fluids and methods of use Charles Svoboda, LaTosha Moore 2015-01-20
8871097 Reclamation of formate brines Hui Zhang, Robert L. Horton, Charles Svoboda 2014-10-28
8575072 Fluid loss additives and methods of making and using same Jeffery R. Harris 2013-11-05
7152697 Delayed phase changing agent for invert emulsion drilling fluid Robert L. Horton, Bethicia B. Prasek, Taylor Green, Mark Luyster, Steve Mason 2006-12-26
6855671 Water based fluids comprising multivalent salts and low molecular weight, low charge cationic polyacrylamide copolymers James Norfleet, Michael A. Jarrett, Patricia A. Potts, Tao Xiang 2005-02-15
6355600 Shale stabilizing drilling fluids comprising calcium chloride and low molecular weight low charge cationicpolyacrylamide copolymers James Norfleet, Michael A. Jarrett, Patricia A. Potts, Tao Xiang 2002-03-12