Inventor
DWARAKANATH VARADARAJAN
US57 patents
⚠️ This page may combine multiple inventors who share the name “DWARAKANATH VARADARAJAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHEVRON USA INC
44 patentsUS9909053B2Mar 6, 2018
Polymer compositions
CHEVRON USA INC34 citations97
US9902894B2Feb 27, 2018
Polymer compositions
CHEVRON USA INC34 citations97
US9896617B2Feb 20, 2018
Polymer compositions
CHEVRON USA INC35 citations97
US9976072B2May 22, 2018
Multicarboxylate compositions and method of making the same
CHEVRON USA INC43 citations96
US7770641B2Aug 10, 2010
Method for enhancing oil recovery with an improved oil recovery surfactant
CHEVRON USA INC78 citations96
US9902895B2Feb 27, 2018
Polymer compositions
CHEVRON USA INC33 citations93
US9617464B2Apr 11, 2017
Mixed carbon length synthesis of primary guerbet alcohols
CHEVRON USA INC43 citations93
US9605198B2Mar 28, 2017
Mixed carbon length synthesis of primary Guerbet alcohols
CHEVRON USA INC43 citations91
US9752071B2Sep 5, 2017
Composition and method for remediation of near wellbore damage
CHEVRON USA INC21 citations90
US10011757B2Jul 3, 2018
Method for remediation of damage in regions of formations near injection wells
CHEVRON USA INC16 citations89
US10626320B2Apr 21, 2020
Methods for hydrocarbon recovery
CHEVRON USA INC7 citations83
US10233382B2Mar 19, 2019
Method of using multicarboxylate compositions in enhanced oil recovery
CHEVRON USA INC6 citations83
US10337303B2Jul 2, 2019
Enhanced oil recovery compositions and methods thereof
CHEVRON USA INC7 citations82
US10197489B2Feb 5, 2019
Processes and systems for characterizing and optimizing fracturing fluids
CHEVRON USA INC16 citations82
US10677706B2Jun 9, 2020
Processes and systems for characterizing and optimizing fracturing fluids
CHEVRON USA INC6 citations80
US11084973B2Aug 10, 2021
Methods for hydrocarbon recovery
CHEVRON USA INC2 citations72
US10619087B2Apr 14, 2020
Methods for hydrocarbon recovery
CHEVRON USA INC3 citations72
US12012547B2Jun 18, 2024
Olefin sulfonate compositions
CHEVRON USA INC2 citations71
US11834609B2Dec 5, 2023
Injection fluids for stimulating fractured formations
CHEVRON USA INC2 citations71
US11760921B2Sep 19, 2023
Injection fluids comprising a non-ionic surfactant for treating unconventional formations
CHEVRON USA INC1 citations71
US11753582B2Sep 12, 2023
Injection fluids comprising an anionic surfactant for treating unconventional formations
CHEVRON USA INC3 citations71
US11248160B2Feb 15, 2022
Compositions for use in oil and gas operations
CHEVRON USA INC1 citations71
US10851629B2Dec 1, 2020
Enhanced oil recovery compositions and methods thereof
CHEVRON USA INC4 citations71
US10436693B2Oct 8, 2019
Portable apparatus and methods for analyzing injection fluids
CHEVRON USA INC5 citations70
US10168265B2Jan 1, 2019
Portable apparatus and methods for analyzing injection fluids
CHEVRON USA INC5 citations70
US11261300B2Mar 1, 2022
Methods and systems for generating aqueous polymer solutions
CHEVRON USA INC1 citations69
US9810049B2Nov 7, 2017
Systems and methods for inline chemical injection for dump flood water injectors
CHEVRON USA INC5 citations68
US12378464B2Aug 5, 2025
Methods for hydrocarbon recovery
CHEVRON USA INC0 citations62
US12371606B2Jul 29, 2025
Methods for hydrocarbon recovery
CHEVRON USA INC0 citations62
US12275893B2Apr 15, 2025
Methods for hydrocarbon recovery
CHEVRON USA INC0 citations62
US12247162B2Mar 11, 2025
Methods for hydrocarbon recovery
CHEVRON USA INC0 citations62
US12286588B2Apr 29, 2025
Polyanionic surfactants and methods of making and using thereof
CHEVRON USA INC0 citations61
US11248159B2Feb 15, 2022
Method of using multicarboxylate compositions in enhanced oil recovery
CHEVRON USA INC0 citations61
US12577451B2Mar 17, 2026
Polyanionic surfactants and methods of making and using thereof
CHEVRON USA INC0 citations60
US12435262B2Oct 7, 2025
Injection fluids comprising an anionic surfactant for treating unconventional formations
CHEVRON USA INC0 citations60
US12331245B2Jun 17, 2025
Use of a borate-acid buffer in oil and gas operations
CHEVRON USA INC0 citations60
US11884879B2Jan 30, 2024
Compositions for use in oil and gas operations
CHEVRON USA INC0 citations60
US11787998B2Oct 17, 2023
Use of a borate-acid buffer in oil and gas operations
CHEVRON USA INC0 citations60
US11739254B2Aug 29, 2023
Methods for use in oil and gas operations
CHEVRON USA INC0 citations60
US11377586B2Jul 5, 2022
Use of a borate-acid buffer in oil and gas operations
CHEVRON USA INC0 citations60
US11008502B2May 18, 2021
Methods for preparing an aqueous surfactant-polymer solution
CHEVRON USA INC0 citations60
US12528982B2Jan 20, 2026
Compositions and methods for breaking foams and emulsions
CHEVRON USA INC0 citations59
US11898100B2Feb 13, 2024
Compositions and methods for breaking foams and emulsions
CHEVRON USA INC0 citations59
US10822539B2Nov 3, 2020
Methods for hydrocarbon recovery
CHEVRON USA INC0 citations51
CHEVRON ORONITE CO
2 patentsWINSLOW GREGORY
1 patentCAMPBELL CURTIS B
1 patentDWARAKANATH VARADARAJAN
1 patentKEMIRA OYJ
1 patentShowing the top 50 of 57 patents by PatentIndex Score.