Inventor

RAMASAMY JOTHIBASU

SA59 patents

Patents

50 patents

US10597575B2Mar 24, 2020

Date tree trunk and rachis-based superfine fibrous materials for seepage loss control

SAUDI ARABIAN OIL CO18 citations94

US10479920B2Nov 19, 2019

Date tree trunk and rachis-based superfine fibrous materials for seepage loss control

SAUDI ARABIAN OIL CO17 citations94

US10233372B2Mar 19, 2019

Loss circulation material for seepage to moderate loss control

SAUDI ARABIAN OIL CO35 citations94

US9957433B2May 1, 2018

Preparation and use of drilling fluids with date seed powder fluid loss additive

SAUDI ARABIAN OIL CO25 citations92

US10865620B1Dec 15, 2020

Ecofriendly emulsifier synthesis from esterified waste vegetable oil for wellbore drilling fluids

SAUDI ARABIAN OIL CO4 citations73

US11078780B2Aug 3, 2021

Systems and methods for actuating downhole devices and enabling drilling workflows from the surface

SAUDI ARABIAN OIL CO3 citations72

US11643899B1May 9, 2023

Device and method for light dissolvable encapsulation activation for downhole applications

SAUDI ARABIAN OIL CO2 citations71

US12570888B2Mar 10, 2026

Polyhedral oligomeric silsesquioxane as rheology booster for invert emulsion oil-based mud

SAUDI ARABIAN OIL CO0 citations63

US12163092B2Dec 10, 2024

Polyhedral oligomeric silsesquioxane as rheology booster for invert emulsion oil-based mud

SAUDI ARABIAN OIL CO0 citations63

US11560508B2Jan 24, 2023

Epoxidized fatty acid methyl ester as primary emulsifier for invert emulsion oil based mud

SAUDI ARABIAN OIL CO0 citations63

US11499082B2Nov 15, 2022

Epoxidized fatty acid methyl ester as low-shear rheology modifier for invert emulsion oil based mud

SAUDI ARABIAN OIL CO0 citations63

US11472995B2Oct 18, 2022

Environmentally-friendly lubricant for oil field drilling fluid applications

SAUDI ARABIAN OIL CO0 citations63

US11434407B2Sep 6, 2022

Rheology modifier with a fatty alcohol for organoclay-free invert emulsion drilling fluid systems

SAUDI ARABIAN OIL CO0 citations63

US11072736B2Jul 27, 2021

Rheology modifier for organoclay-free invert emulsion drilling fluid systems

SAUDI ARABIAN OIL CO0 citations63

US10907082B2Feb 2, 2021

Two-component lost circulation pill for seepage to moderate loss control

SAUDI ARABIAN OIL CO0 citations63

US10808161B2Oct 20, 2020

Ecofriendly emulsifier synthesis from esterified waste vegetable oil for wellbore drilling fluids

SAUDI ARABIAN OIL CO1 citations63

US12146381B2Nov 19, 2024

Drilling stabilizers with dissolvable windows for controlled release of chemicals

SAUDI ARABIAN OIL CO0 citations62

US11866664B2Jan 9, 2024

Green corrosion inhibitor from waste vegetable oil for oil and gas applications

SAUDI ARABIAN OIL CO0 citations62

US11851977B2Dec 26, 2023

Drilling stabilizers with dissolvable windows for controlled release of chemicals

SAUDI ARABIAN OIL CO0 citations62

US11686196B2Jun 27, 2023

Downhole actuation system and methods with dissolvable ball bearing

SAUDI ARABIAN OIL CO1 citations62

US11649393B1May 16, 2023

Corrosion inhibition compositions and methods of use

SAUDI ARABIAN OIL CO0 citations62

US11618842B2Apr 4, 2023

Nanosized dendrimeric epoxy resin to prevent casing-casing annulus pressure issues

SAUDI ARABIAN OIL CO0 citations62

US11542422B2Jan 3, 2023

Water-based drilling fluids that include lubricants

SAUDI ARABIAN OIL CO0 citations62

US11434707B2Sep 6, 2022

Lost circulation fabric, method, and deployment systems

SAUDI ARABIAN OIL CO0 citations62

US11434708B2Sep 6, 2022

Lost circulation fabric, method, and deployment systems

SAUDI ARABIAN OIL CO0 citations62

US11407956B1Aug 9, 2022

Lubricant formulation for multiple water-based muds

SAUDI ARABIAN OIL CO0 citations62

US11365337B2Jun 21, 2022

Lubricants that include alkyl esters and fatty acids

SAUDI ARABIAN OIL CO0 citations62

US11365365B2Jun 21, 2022

Lubricants that include alkyl esters and fatty acids

SAUDI ARABIAN OIL CO0 citations62

US11299661B2Apr 12, 2022

Water-based drilling fluids that include lubricants

SAUDI ARABIAN OIL CO0 citations62

US11124687B2Sep 21, 2021

Synthesized lubricants for water-based drilling fluid systems

SAUDI ARABIAN OIL CO0 citations62

US12570907B2Mar 10, 2026

Refinery crude distillation unit corrosion inhibitor

SAUDI ARABIAN OIL CO0 citations61

US11667829B1Jun 6, 2023

Corrosion inhibition compositions and methods of use

SAUDI ARABIAN OIL CO0 citations61

US11396620B2Jul 26, 2022

Epoxidized alpha olefin based anti-bit balling additive for water-based drilling fluids

SAUDI ARABIAN OIL CO0 citations61

US11492537B2Nov 8, 2022

Nanosized dendrimeric epoxy resin as a loss circulation material

SAUDI ARABIAN OIL CO0 citations60

US11021644B2Jun 1, 2021

Drilling fluids and methods of making thereof

SAUDI ARABIAN OIL CO0 citations60

US12435257B2Oct 7, 2025

Drilling fluids and methods thereof

SAUDI ARABIAN OIL CO0 citations59

US11427744B2Aug 30, 2022

Waste vegetable oil-based emulsifier for invert emulsion drilling fluid

SAUDI ARABIAN OIL CO0 citations59

US12291785B2May 6, 2025

Ethoxylated fatty diamine as a corrosion inhibitor for pipelines and storage tanks

SAUDI ARABIAN OIL CO1 citations58

US12286584B2Apr 29, 2025

High-performance primary emulsifier for invert-emulsion oil based mud

SAUDI ARABIAN OIL CO0 citations58

US12435258B2Oct 7, 2025

Organoclay-free invert emulsion oil-based drilling fluids with polyhedral oligomeric silsesquioxane

SAUDI ARABIAN OIL CO0 citations56

US11933136B2Mar 19, 2024

Dissolvable balls for activation and deactivation of a circulating sub apparatus

SAUDI ARABIAN OIL CO0 citations52

US11814933B2Nov 14, 2023

Actuation of downhole devices

SAUDI ARABIAN OIL CO0 citations52

US11485898B2Nov 1, 2022

Environmentally friendly epoxidized vegetable oil based fatty acid esters to prevent loss circulation

SAUDI ARABIAN OIL CO0 citations52

Showing the top 50 of 59 patents by PatentIndex Score.

RAMASAMY JOTHIBASU

Patents

Date tree trunk and rachis-based superfine fibrous materials for seepage loss control

Date tree trunk and rachis-based superfine fibrous materials for seepage loss control

Loss circulation material for seepage to moderate loss control

Preparation and use of drilling fluids with date seed powder fluid loss additive

Downhole ultraviolet system for mitigating lost circulation

Date tree trunk-based fibrous loss circulation materials

Systems and methods for controlled release of sensor swarms downhole

Epoxidized alpha olefin based lubricant for water-based drilling fluids

Apparatus for loss circulation material performance evaluation

Rheology modifier for organoclay-free invert emulsion drilling fluid systems

Downhole ultrasonic actuator system for mitigating lost circulation

Ecofriendly emulsifier synthesis from esterified waste vegetable oil for wellbore drilling fluids

Systems and methods for actuating downhole devices and enabling drilling workflows from the surface

Device and method for light dissolvable encapsulation activation for downhole applications

Polyhedral oligomeric silsesquioxane as rheology booster for invert emulsion oil-based mud

Polyhedral oligomeric silsesquioxane as rheology booster for invert emulsion oil-based mud

Epoxidized fatty acid methyl ester as primary emulsifier for invert emulsion oil based mud

Epoxidized fatty acid methyl ester as low-shear rheology modifier for invert emulsion oil based mud

Environmentally-friendly lubricant for oil field drilling fluid applications

Rheology modifier with a fatty alcohol for organoclay-free invert emulsion drilling fluid systems

Rheology modifier for organoclay-free invert emulsion drilling fluid systems

Two-component lost circulation pill for seepage to moderate loss control

Ecofriendly emulsifier synthesis from esterified waste vegetable oil for wellbore drilling fluids

Drilling stabilizers with dissolvable windows for controlled release of chemicals

Green corrosion inhibitor from waste vegetable oil for oil and gas applications

Drilling stabilizers with dissolvable windows for controlled release of chemicals

Downhole actuation system and methods with dissolvable ball bearing

Corrosion inhibition compositions and methods of use

Nanosized dendrimeric epoxy resin to prevent casing-casing annulus pressure issues

Water-based drilling fluids that include lubricants

Lost circulation fabric, method, and deployment systems

Lost circulation fabric, method, and deployment systems

Lubricant formulation for multiple water-based muds

Lubricants that include alkyl esters and fatty acids

Lubricants that include alkyl esters and fatty acids

Water-based drilling fluids that include lubricants

Synthesized lubricants for water-based drilling fluid systems

Refinery crude distillation unit corrosion inhibitor

Corrosion inhibition compositions and methods of use

Epoxidized alpha olefin based anti-bit balling additive for water-based drilling fluids

Nanosized dendrimeric epoxy resin as a loss circulation material

Drilling fluids and methods of making thereof

Drilling fluids and methods thereof

Waste vegetable oil-based emulsifier for invert emulsion drilling fluid

Ethoxylated fatty diamine as a corrosion inhibitor for pipelines and storage tanks

High-performance primary emulsifier for invert-emulsion oil based mud

Organoclay-free invert emulsion oil-based drilling fluids with polyhedral oligomeric silsesquioxane

Dissolvable balls for activation and deactivation of a circulating sub apparatus

Actuation of downhole devices

Environmentally friendly epoxidized vegetable oil based fatty acid esters to prevent loss circulation