P

Inventor

SANTRA ASHOK

US55 patents
⚠️ This page may combine multiple inventors who share the name “SANTRA ASHOK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SAUDI ARABIAN OIL CO

35 patents
US11767466B2Sep 26, 2023

Nanocomposite coated proppants and methods of making same

SAUDI ARABIAN OIL CO5 citations74
US11377944B2Jul 5, 2022

Methods of suspending proppants in hydraulic fracturing fluid

SAUDI ARABIAN OIL CO6 citations74
US11739628B2Aug 29, 2023

Methods of determining wellbore integrity

SAUDI ARABIAN OIL CO2 citations73
US11643587B2May 9, 2023

Methods of making cement slurries and cured cement and use thereof

SAUDI ARABIAN OIL CO2 citations73
US11148977B2Oct 19, 2021

Sorel cement composition and method to cure loss of circulation

SAUDI ARABIAN OIL CO2 citations73
US11891565B1Feb 6, 2024

Host-guest lost-circulation materials for sealing lost circulation zones in wellbores

SAUDI ARABIAN OIL CO2 citations71
US12570887B2Mar 10, 2026

Ultra-high molecular weight (UHMW) branched block copolymer viscosifier for water based drilling fluids

SAUDI ARABIAN OIL CO0 citations62
US12534995B2Jan 27, 2026

Methods of determining wellbore integrity

SAUDI ARABIAN OIL CO0 citations62
US12428589B2Sep 30, 2025

Synthesis and use of grafted graphene in aqueous drilling fluids as low shear rate viscosity enhancer

SAUDI ARABIAN OIL CO0 citations62
US12391864B2Aug 19, 2025

Development of ultra-high molecular weight (UHMW) branched block copolymer shale inhibitor for water based drilling fluid

SAUDI ARABIAN OIL CO0 citations62
US12378465B2Aug 5, 2025

Development of ultra-high molecular weight (UHMW) branched block copolymer drag reducer with improved mechanical and chemical stability

SAUDI ARABIAN OIL CO0 citations62
US12351754B2Jul 8, 2025

Drilling fluids and methods of making and use thereof

SAUDI ARABIAN OIL CO0 citations62
US12286499B2Apr 29, 2025

Polyrotaxane-reinforced settable fluids with entrapped gas phase under high pressure

SAUDI ARABIAN OIL CO0 citations62
US11827732B2Nov 28, 2023

Amphiphilic branched copolymer drilling additive

SAUDI ARABIAN OIL CO0 citations62
US11370706B2Jun 28, 2022

Cement slurries, cured cement and methods of making and use thereof

SAUDI ARABIAN OIL CO0 citations62
US11370952B2Jun 28, 2022

Magnetically responsive drilling fluid and methods of making and use thereof

SAUDI ARABIAN OIL CO0 citations62
US11332651B2May 17, 2022

Synthetic functionalized additives, methods of synthesizing, and methods of use

SAUDI ARABIAN OIL CO0 citations62
US11292954B2Apr 5, 2022

Cement slurries, cured cement and methods of making and use thereof

SAUDI ARABIAN OIL CO0 citations62
US12570907B2Mar 10, 2026

Refinery crude distillation unit corrosion inhibitor

SAUDI ARABIAN OIL CO0 citations61
US11674069B2Jun 13, 2023

Synthetic layered magnesium silicates and their derivatives for high performance oil-based drilling fluids

SAUDI ARABIAN OIL CO0 citations61
US11674070B1Jun 13, 2023

Unfoldable device for controlling loss circulation

SAUDI ARABIAN OIL CO0 citations61
US11492530B2Nov 8, 2022

Unfoldable device for controlling loss circulation

SAUDI ARABIAN OIL CO1 citations61
US11434405B2Sep 6, 2022

Additives for oil and gas drilling and production

SAUDI ARABIAN OIL CO0 citations61
US11414584B2Aug 16, 2022

Viscosity supporting additive for water-based drilling and completions fluids

SAUDI ARABIAN OIL CO0 citations61
US11407927B2Aug 9, 2022

Additives for oil and gas drilling and production

SAUDI ARABIAN OIL CO0 citations61
US11370954B2Jun 28, 2022

Additives for oil and gas drilling and production

SAUDI ARABIAN OIL CO0 citations61
US11118092B2Sep 14, 2021

Synthetic layered magnesium silicates and their derivatives for high performance oil-based drilling fluids

SAUDI ARABIAN OIL CO0 citations61
US10894910B2Jan 19, 2021

Additives for oil and gas drilling and production

SAUDI ARABIAN OIL CO0 citations61
US12264281B2Apr 1, 2025

Repairing wellbore cement structures and related compositions

SAUDI ARABIAN OIL CO0 citations59
US12152191B1Nov 26, 2024

Methods and compositions of low specific gravity eutectic composite particles

SAUDI ARABIAN OIL CO0 citations56
US12071589B2Aug 27, 2024

Water-soluble graphene oxide nanosheet assisted high temperature fracturing fluid

SAUDI ARABIAN OIL CO0 citations56
US11912926B2Feb 27, 2024

Synthetic functionalized additives, methods of synthesizing, and methods of use

SAUDI ARABIAN OIL CO0 citations52
US11370951B2Jun 28, 2022

Methods of suspending weighting agents in a drilling fluid

SAUDI ARABIAN OIL CO0 citations52
US11261363B2Mar 1, 2022

Methods of suspending weighting agents in a drilling fluid

SAUDI ARABIAN OIL CO0 citations52
US11242478B2Feb 8, 2022

Charged composite materials, methods of synthesizing, and methods of use

SAUDI ARABIAN OIL CO0 citations52

ARAMCO SERVICES CO

9 patents

HALLIBURTON ENERGY SERV INC

2 patents

HALLIBURTON ENERGY SERVICES INC

2 patents

PELLETIER MICHAEL T

1 patent

MILLER TODD B

1 patent

Showing the top 50 of 55 patents by PatentIndex Score.