Inventor · disambiguated record
Frank E. Evans
Also filed as: EVANS FRANK · EVANS FRANK E · EVANS FRANK L · EVANS JR FRANK E
11 granted patents·3 pending applications·147 citations·filing 1976–2017
90Inventor score
Files withBAKER HUGHES INC2CHEVRON PHILLIPS CHEMICAL CO LP2HARRIS JEFFERY R2MI LLC2CHEVRON PHILLIPS CHEMICAL CO1
Top patents by PatentIndex Score
14 records- 0196US9034800B2Fluid loss additives and methods of making and using sameHARRIS JEFFERY R·Filed 2011·Granted May 19, 2015·36 cites·20 claims
- 0289US9353306B2Viscoelastic surfactant based wellbore fluids and methods of useMI LLC·Filed 2014·Granted May 31, 2016·7 cites·12 claims
- 0379US8575072B2Fluid loss additives and methods of making and using sameHARRIS JEFFERY R·Filed 2011·Granted Nov 5, 2013·4 cites·20 claims
- 0479US6355600B1Shale stabilizing drilling fluids comprising calcium chloride and low molecular weight low charge cationicpolyacrylamide copolymersBAKER HUGHES INC·Filed 1999·Granted Mar 12, 2002·48 cites·121 claims
- 0575US6855671B2Water based fluids comprising multivalent salts and low molecular weight, low charge cationic polyacrylamide copolymersBAKER HUGHES INC·Filed 2002·Granted Feb 15, 2005·18 cites·95 claims
- 0674US9598627B2Fluid loss additives and methods of making and using sameCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Mar 21, 2017·1 cites·19 claims
- 0771US8937034B2Viscoelastic surfactant based wellbore fluids and methods of useSVOBODA CHARLES·Filed 2009·Granted Jan 20, 2015·3 cites·21 claims
- 0870US9328280B2Additives for oil-based drilling fluidsCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted May 3, 2016·2 cites·26 claims
- 0965US8871097B2Reclamation of formate brinesZHANG HUI·Filed 2008·Granted Oct 28, 2014·1 cites·21 claims
- 1060US7152697B2Delayed phase changing agent for invert emulsion drilling fluidMI LLC·Filed 2004·Granted Dec 26, 2006·16 cites·8 claims
- 1154US2017145287A1Fluid Loss Additives and Methods of Making and Using SameCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Application pending·0 cites
- 1240US2007119348A1Portable desk for use in vehiclesEVANS FRANK L·Filed 2005·Application pending·0 cites
- 1339US4061360ACollapsible golf bag cartEVANS FRANK E·Filed 1976·Granted Dec 6, 1977·11 cites·10 claims
- 1427US2004076321A1Non-oriented optical character recognition of a wafer markFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →