Inventor
JOHNSTON RAY L
US27 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSTON RAY L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CONOCOPHILLIPS CO
8 patentsUS8022118B2Sep 20, 2011
Drag reduction of asphaltenic crude oils
CONOCOPHILLIPS CO15 citations92
US6765053B2Jul 20, 2004
Drag-reducing polymer suspensions
CONOCOPHILLIPS CO26 citations90
US6939902B2Sep 6, 2005
Drag-reducing polymer suspensions
CONOCOPHILLIPS CO17 citations84
US6596832B2Jul 22, 2003
Polymer compositions useful as flow improvers in cold fluids
CONOCOPHILLIPS CO17 citations84
US7763671B2Jul 27, 2010
Modified latex drag reducer and processes therefor and therewith
CONOCOPHILLIPS CO10 citations83
US7361628B2Apr 22, 2008
Remote delivery of latex drag-reducing agent without introduction of immiscible low-viscosity flow facilitator
CONOCOPHILLIPS CO11 citations83
US7285582B2Oct 23, 2007
Modified latex drag reducer and processes therefor and therewith
CONOCOPHILLIPS CO12 citations83
US7888407B2Feb 15, 2011
Disperse non-polyalphaolefin drag reducing polymers
CONOCOPHILLIPS CO2 citations62
LIQUIDPOWER SPECIALTY PRODUCTS INC
6 patentsUS10683412B2Jun 16, 2020
Drag reducing composition
LIQUIDPOWER SPECIALTY PRODUCTS INC3 citations64
US11098221B2Aug 24, 2021
Additives for improving DRA injection
LIQUIDPOWER SPECIALTY PRODUCTS INC1 citations61
US12252570B2Mar 18, 2025
Core-shell flow improver
LIQUIDPOWER SPECIALTY PRODUCTS INC0 citations60
US11028210B2Jun 8, 2021
Core-shell flow improver
LIQUIDPOWER SPECIALTY PRODUCTS INC0 citations60
US10370502B2Aug 6, 2019
Disperse non-polyalphaolefin drag reducing polymers
LIQUIDPOWER SPECIALTY PRODUCTS INC0 citations51
US10683397B2Jun 16, 2020
Remediation of agglomerated flow improvers
LIQUIDPOWER SPECIALTY PRODUCTS INC0 citations50
CONOCO INC
4 patentsUS5165440ANov 24, 1992
Process and apparatus for blending viscous polymers in solvent
CONOCO INC61 citations96
US6172151B1Jan 9, 2001
Nonaqueous drag reducing suspensions
CONOCO INC68 citations95
US5376697ADec 27, 1994
Drag reducers for flowing hydrocarbons
CONOCO INC67 citations91
US4756326AJul 12, 1988
Polymeric drag reducer performance by injection through a land-length die
CONOCO INC16 citations74
MILLIGAN STUART N
4 patentsUS8450250B2May 28, 2013
Drag reduction of asphaltenic crude oils
MILLIGAN STUART N7 citations83
US8450249B2May 28, 2013
Drag reduction of asphaltenic crude oils
MILLIGAN STUART N4 citations72
US8450251B2May 28, 2013
Drag reduction of asphaltenic crude oils
MILLIGAN STUART N4 citations72
US8426498B2Apr 23, 2013
Drag reduction of asphaltenic crude oils
MILLIGAN STUART N2 citations61