Inventor

Larry S. Eoff

Inventor

Duncan, OK, US

Overview

1993–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 126 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Kprimary

C09KMaterials for miscellaneous applications, not provided for elsewhere56%

E21BEarth or rock drilling19%

C04BLime, magnesia10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds2%

C08LCompositions of macromolecular compounds2%

Y02WClimate change mitigation technologies related to wastewater treatment or waste management1%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients1%

C08BPolysaccharides0%

C08JWorking-up0%

PatentTitleYear

11,091,977Methods for diversion and controlling fluid-loss using formate brine compositions2021 11,091,687Methods of improving conformance applications2021 10,982,126Chemical packer composition and methods of using same for isolation of water/gas zones2021 10,876,045Subterranean stimulation operations utilizing degradable pre-coated particulates2020 10,808,515Propped fracture geometry with continuous flow2020 10,738,231Syneresis reducing compositions for conformance applications using metal cross-linked gels2020 10,703,962Hydrogels of graft polymers for acid diversion2020 10,647,910Methods for enhancing effective propped fracture conductivity2020 10,563,491Mitigating water inclusion in downhole pumps2020 10,421,896Polylactic acid/acid-soluble hard particulate blends as degradable diverting agents2019 10,337,282Methods and compositions for reducing water production in fractures or voids in subterranean formations2019 10,174,241Methods for improving the distribution of a sealant composition in a wellbore and treatment fluids providing the same2019 10,077,397Wellbore servicing materials and methods of making and using same2018 10,023,498Settable cement compositions for terminating water flow and associated methods2018 9,969,923Sealant compositions for use in subterranean formation operations2018 9,869,156'Gellable treatment fluids with clay-based gel retarders and related methods'2018 9,840,659'Deactivation and activation of permeability modifiers for use in subterranean formation operations'2017 9,783,724'Gellable treatment fluids comprising quaternary ammonium salt gel-time modifiers and methods for use thereof'2017 9,771,773'Diutan as a rheological modifier in sorel cements'2017 9,708,523'Swellable spacer fluids and associated methods'2017 9,670,402'Gellable treatment fluids having adjustable gel times and methods associated therewith'2017 9,657,217'Gellable treatment fluids comprising amino group gel-time modifiers'2017 9,644,130'Reaction products of acrylamide polymers and methods for use thereof as relative permeability modifiers'2017 9,598,631'Sulfonated relative permeability modifiers for reducing subterranean formation water permeability'2017 9,562,423'Acid diversion treatments in injection wells using permeability modifiers'2017 9,546,314'Treatment fluids containing a relative permeability modifier and a companion polymer interacting synergistically therewith and methods for use thereof'2017 9,441,151'Wellbore servicing materials and methods of making and using same'2016 9,284,478'Salt of weak bronsted base and bronsted acid as gelation retarder for crosslinkable polymer compositions'2016 9,175,206'Gellable treatment fluids having adjustable gel times and methods associated therewith'2015 9,150,781'Gellable treatment fluids comprising quaternary ammonium salt gel-time modifiers and methods for use thereof'2015 9,127,193'Lewis acid as gelation retarder for crosslinkable polymer compositions'2015 9,090,811'Gellable treatment fluids comprising amino group gel-time modifiers and methods for use thereof'2015 9,051,506'Hydration acceleration surfactants in conjunction with high molecular weight polymers, and methods and compositions relating thereto'2015 8,962,535'Methods of diverting chelating agents in subterranean treatments'2015 8,950,488'Polymerizing and anchoring a water-soluble polymer to an in-place mineral surface of a well'2015 8,883,695'Particulate materials coated with a relative permeability modifier and methods for treating subterranean formations using treatment fluids containing the same'2014 8,703,659'Sealant composition comprising a gel system and a reduced amount of cement for a permeable zone downhole'2014 8,636,069'Wellbore servicing fluid compositions and use thereof'2014 8,631,869'Methods useful for controlling fluid loss in subterranean treatments'2014 8,623,793'Hydrophobically and cationically modified relative permeability modifiers and associated methods'2014 8,592,353'Methods useful for diverting aqueous fluids in subterranean operations'2013 8,522,874'Weak organic acid as gelation retarder for crosslinkable polymer compositions'2013 8,470,746'Methods relating to the stabilization of hydrophobically modified hydrophilic polymer treatment fluids under alkaline conditions'2013 8,459,352'Selective placement of conformance treatments in multi-zone well completions'2013 8,420,576'Hydrophobically and cationically modified relative permeability modifiers and associated methods'2013 8,418,764'Methods useful for controlling fluid loss in subterranean formations'2013 8,387,694'Methods for placement of sealant in subterranean intervals'2013 8,360,145'Selective placement of conformance treatments in multi-zone well completions'2013 8,343,896'Sealant compositions comprising diutan and associated methods'2013 8,322,421'Lewis acid as gelation retarder for crosslinkable polymer compositions'2012 8,302,691'Methods for increasing gas production from a subterranean formation'2012 8,278,250'Methods useful for diverting aqueous fluids in subterranean operations'2012 8,272,440'Methods for placement of sealant in subterranean intervals'2012 8,273,692'Permeability-modifying drilling fluids and methods of use'2012 8,273,690'Crosslinkable polymer compositions comprising phenols and associated methods'2012 8,251,141'Methods useful for controlling fluid loss during sand control operations'2012 8,196,655'Selective placement of conformance treatments in multi-zone well completions'2012 8,181,703'Method useful for controlling fluid loss in subterranean formations'2012 8,158,720'Crosslinkable polymer compositions and associated methods'2012 8,091,638'Methods useful for controlling fluid loss in subterranean formations'2012 8,053,395'Compositions for increasing gas production from a subterranean formation'2011 8,011,446'Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell'2011 8,008,235'Permeability-modifying drilling fluids and methods of use'2011 7,891,425'Methods of limiting or preventing fluid flow through a portion of a subterranean formation'2011 7,833,944'Methods and compositions using crosslinked aliphatic polyesters in well bore applications'2010 7,759,292'Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation'2010 7,741,251'Compositions and methods of stabilizing subterranean formations containing reactive shales'2010 7,687,438'Drill-in fluids and associated methods'2010 7,678,743'Drill-in fluids and associated methods'2010 7,678,742'Drill-in fluids and associated methods'2010 7,674,753'Treatment fluids and methods of forming degradable filter cakes comprising aliphatic polyester and their use in subterranean formations'2010 7,595,283'Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation'2009 7,589,048'Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation'2009 7,571,777'Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell'2009 7,563,750'Methods and compositions for the diversion of aqueous injection fluids in injection operations'2009 7,552,771'Methods to enhance gas production following a relative-permeability-modifier treatment'2009 7,493,957'Methods for controlling water and sand production in subterranean wells'2009 7,475,728'Treatment fluids and methods of use in subterranean formations'2009 7,341,117'Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell'2008 7,331,390'Compositions and methods for plugging and sealing a subterranean formation'2008 7,325,613'Crosslinkable polymer compositions comprising phenols and associated methods'2008 7,322,414'Crosslinkable-polymer compositions and associated methods'2008 7,297,207'Biodegradable dispersants for cement compositions and methods of cementing in subterranean formations'2007 7,287,586'Compositions and methods for plugging and sealing a subterranean formation'2007 7,287,587'Crosslinkable polymer compositions and associated methods'2007 7,273,100'Biodegradable dispersants for cement compositions and methods of cementing in subterranean formations'2007 7,238,229'Methods and compositions for cementing in well bores'2007 7,225,879'Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell'2007 7,220,708'Drilling fluid component'2007 7,216,707'Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions'2007 7,207,387'Methods and compositions for use with spacer fluids used in subterranean well bores'2007 7,182,136'Methods of reducing water permeability for acidizing a subterranean formation'2007 7,159,656'Methods of reducing the permeabilities of horizontal well bore sections'2007 7,131,493'Methods of using sealants in multilateral junctions'2006 7,128,148'Well treatment fluid and methods for blocking permeability of a subterranean zone'2006 7,114,568'Hydrophobically modified polymers for a well completion spacer fluid'2006 7,091,159'Compositions for and methods of stabilizing subterranean formations containing clays'2006 7,066,284'Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell'2006 7,063,153'Methods and compositions for cementing wells'2006 7,007,752'Well treatment fluid and methods with oxidized polysaccharide-based polymers'2006 6,981,552'Well treatment fluid and methods with oxidized polysaccharide-based polymers'2006 6,855,201'Cementing compositions'2005 6,848,519'Methods of forming a chemical casing'2005 6,843,841'Preventing flow through subterranean zones'2005 6,837,316'Methods of consolidating formations'2005 6,823,940'Methods of consolidating formations and forming a chemical casing'2004 6,822,061'Well cement additives, compositions and methods'2004 6,799,636'Methods and compositions for cementing in wellbores'2004 6,764,981'Well treatment fluid and methods with oxidized chitosan-based compound'2004 6,743,288'Well cement additives, compositions and methods'2004 6,739,806'Cement compositions with improved fluid loss characteristics and methods of cementing in subterranean formations'2004 6,715,552'Well cementing methods and compositions'2004 6,702,044'Methods of consolidating formations or forming chemical casing or both while drilling'2004 6,607,035'Preventing flow through subterranean zones'2003 6,497,283'Well cement additives, compositions and methods'2002 6,476,169'Methods of reducing subterranean formation water permeability'2002 6,364,016'Methods of reducing the water permeability of subterranean formations'2002 6,321,841'Methods of sealing pipe strings in disposal wells'2001 6,220,350'High strength water soluble plug'2001 6,187,839'Methods of sealing compositions and methods'2001 6,176,315'Preventing flow through subterranean zones'2001 5,501,276'Drilling fluid and filter cake removal methods and compositions'1996 5,368,642'Functionalized polymers containing amine groupings and their use as retarders in cement slurries'1994 5,339,903'Method for control of gas migration in well cementing'1994 5,290,357'Acetone/formaldehyde/cyanide resins'1994 5,264,470'Set retarding additives, cement compositions and methods'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2019Based in Duncan, OK, US· patent location history

1996Based in Katy, TX, US· patent location history

2001–2015Patents assigned to HALLIBURTON ENERGY SERV INC (85)· patent assignee history

2006–2017Patents assigned to EOFF LARRY S (32)· patent assignee history

2012–2017Patents assigned to REDDY B RAGHAVA (17)· patent assignee history

2012–2014Patents assigned to DALRYMPLE ELDON D (14)· patent assignee history

2015–2021Patents assigned to HALLIBURTON ENERGY SERVICES INC (33)· patent assignee history

2017–2021Based in Porter, TX, US· patent location history

2017Based in Houston, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HALLIBURTON ENERGY SERV INC	85	2001–2015
HALLIBURTON ENERGY SERVICES INC	33	2015–2021
EOFF LARRY Sself	32	2006–2017
REDDY B RAGHAVA	17	2012–2017
DALRYMPLE ELDON D	14	2012–2014

Locations

Location	Patents	Span
Duncan, OK, US	105	1993–2019
Porter, Texas, US	19	2017–2021
Houston, Texas, US	1	2017
Katy, Texas, US	1	1996