Patents by Inventor Raj Krishnan
Raj Krishnan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230040360Abstract: Coated proppants include a proppant particle, a surface copolymer layer surrounding the proppant particle, and a resin layer surrounding the surface copolymer layer. The surface copolymer layer includes a copolymer of at least two monomers chosen from styrene, methyl methacrylate, ethylene, propylene, butylene, imides, urethanes, sulfones, carbonates, and acrylamides, where the copolymer is crosslinked by divinyl benzene. The resin layer includes a cured resin.Type: ApplicationFiled: August 6, 2021Publication date: February 9, 2023Applicants: Saudi Arabian Oil Company, Alfaisal UniversityInventors: Wengang Li, Edreese Alsharaeh, Mohan Raj Krishnan
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Patent number: 11499092Abstract: Polyacrylamide (PAM)-coated nanosand that may be a relative permeability modifier (RPM) and that is applied to treat a wellbore in a subterranean formation. The treatment may be for excess water production. The PAM-coated nanosand is PAM-hydrogel-coated nanosand. The PAM-coated nanosand os nanosand coated with PAM hydrogel. The PAM hydrogel includes crosslinked PAM in water. Application of the PAM-coated nanosand may reduce water production from the subterranean formation into the wellbore. The PAM hydrogel of the PAM-coated nanosand may expand in a water zone of the subterranean formation to restrict water flow into the wellbore. The PAM hydrogel of the PAM-coated nanosand may contract in an oil zone of the subterranean formation so not to significantly restrict crude oil flow into the wellbore.Type: GrantFiled: February 18, 2021Date of Patent: November 15, 2022Assignee: Saudi Arabian Oil CompanyInventors: Ayman Almohsin, Edreese Alsharaeh, Mohan Raj Krishnan, Mohieddin Alghazali
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Publication number: 20220321595Abstract: A method, apparatus, and computer program are disclosed. The method may be performed by one or more processors and may comprise receiving first data representing an infrastructure of a computer network, the first data comprising an indication of hosts which form at least part of the computer network and one or more software resources on respective hosts. The method may also comprise receiving second data from a vulnerability scanning software, the second data comprising an indication of one or more vulnerabilities detected in the one or more software resources provided on at least some of the hosts of the computer network. Using a combination of the first data and the second data, output data may be generated representing a risk profile of the computer network infrastructure, the output data indicating one or more subsets of hosts, determined as being at risk of being affected by the detected vulnerabilities by virtue of the software resources they provide for output on a user interface.Type: ApplicationFiled: June 21, 2022Publication date: October 6, 2022Inventors: Elliot Colquhoun, Abhishek Agarwal, Andrew Eggleton, Brandon Helms, Carl Ambroselli, Cem Zorlular, Daniel Kelly, Gautam Punukollu, Jeffrey Tsui, Morten Kromann, Nikhil Seetharaman, Raj Krishnan, Samuel Jones, Tareq Alkhatib, Dayang Shi
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Patent number: 11459503Abstract: A method for producing a coated proppant having an intermediate cross-linked terpolymer layer includes mixing a monomers solution including a first monomer, a second monomer that is different from the first monomer, a cross-linking agent, and an initiator. The proppant particle is combined with the monomers solution, and the monomer solution on the surface of the at least one proppant particle is polymerized to form at least one proppant particle having the intermediate cross-linked terpolymer layer on a surface of the at least one proppant particle. A resin solution including an epoxy resin, a curing agent, and graphene is mixed, and combined with the at least one proppant particle having the intermediate cross-linked terpolymer layer on a surface of the at least one proppant particle. The resin solution is cured to form the coated proppant comprising an intermediate cross-linked terpolymer layer.Type: GrantFiled: June 18, 2020Date of Patent: October 4, 2022Assignees: Saudi Arabian Oil Company, Alfaisal UniversityInventors: Wengang Li, Edreese Alsharaeh, Mohan Raj Krishnan
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Publication number: 20220290033Abstract: A polymer-nanofiller hydrogel including polymer hydrogel and nanofiller. The nanofiller is or includes nanosand. A method for forming the polymer-nanofiller hydrogel. A method of treating a wellbore in a subterranean formation, including applying a polymer-nanofiller hydrogel to the wellbore.Type: ApplicationFiled: March 10, 2021Publication date: September 15, 2022Inventors: Ayman Almohsin, Edreese Alsharaeh, Feven Mattews Michael, Mohan Raj Krishnan
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Publication number: 20220259488Abstract: Polyacrylamide (PAM)-coated nanosand that may be a relative permeability modifier (RPM) and that is applied to treat a wellbore in a subterranean formation. The treatment may be for excess water production. The PAM-coated nanosand is PAM-hydrogel-coated nanosand. The PAM-coated nanosand os nanosand coated with PAM hydrogel. The PAM hydrogel includes crosslinked PAM in water. Application of the PAM-coated nanosand may reduce water production from the subterranean formation into the wellbore. The PAM hydrogel of the PAM-coated nanosand may expand in a water zone of the subterranean formation to restrict water flow into the wellbore. The PAM hydrogel of the PAM-coated nanosand may contract in an oil zone of the subterranean formation so not to significantly restrict crude oil flow into the wellbore.Type: ApplicationFiled: February 18, 2021Publication date: August 18, 2022Inventors: Ayman Almohsin, Edreese Alsharaeh, Mohan Raj Krishnan, Mohieddin Alghazali
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Patent number: 11418529Abstract: A method, apparatus, and computer program are disclosed. The method may be performed by one or more processors and may comprise receiving first data representing an infrastructure of a computer network, the first data comprising an indication of hosts which form at least part of the computer network and one or more software resources on respective hosts. The method may also comprise receiving second data from a vulnerability scanning software, the second data comprising an indication of one or more vulnerabilities detected in the one or more software resources provided on at least some of the hosts of the computer network. Using a combination of the first data and the second data, output data may be generated representing a risk profile of the computer network infrastructure, the output data indicating one or more subsets of hosts, determined as being at risk of being affected by the detected vulnerabilities by virtue of the software resources they provide for output on a user interface.Type: GrantFiled: March 6, 2019Date of Patent: August 16, 2022Assignee: Palantir Technologies Inc.Inventors: Elliot Colquhoun, Abhishek Agarwal, Andrew Eggleton, Brandon Helms, Carl Ambroselli, Cem Zorlular, Daniel Kelly, Gautam Punukollu, Jeffrey Tsui, Morten Kromann, Nikhil Seetharaman, Raj Krishnan, Samuel Jones, Tareq Alkhatib, Dayang Shi
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Publication number: 20220112777Abstract: A method of forming a barrier to overcome lost circulation in a subterranean formation. The method includes injecting; a polymer-sand nanocomposite into one or more lost circulation zones in the subterranean formation where the polymer-sand nanocomposite is formed from sand mixed with a polymer hydrogel. Further, the polymer hydrogel includes a hydrogel polymer, an organic cross-linker, and a salt. The sand additionally comprises a surface modification. The associated method of preparing a polymer-sand nanocomposite lost circulation material for utilization in forming the barrier is provided.Type: ApplicationFiled: October 9, 2020Publication date: April 14, 2022Applicants: Alfaisal Univeristy, Saudi Arabian Oil CompanyInventors: Ayman Almohsin, Edreese Alsharaeh, Mohan Raj Krishnan
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Publication number: 20210395604Abstract: A method for producing a coated proppant having an intermediate cross-linked terpolymer layer includes mixing a monomers solution including a first monomer, a second monomer that is different from the first monomer, a cross-linking agent, and an initiator. The proppant particle is combined with the monomers solution, and the monomer solution on the surface of the at least one proppant particle is polymerized to form at least one proppant particle having the intermediate cross-linked terpolymer layer on a surface of the at least one proppant particle. A resin solution including an epoxy resin, a curing agent, and graphene is mixed, and combined with the at least one proppant particle having the intermediate cross-linked terpolymer layer on a surface of the at least one proppant particle. The resin solution is cured to form the coated proppant comprising an intermediate cross-linked terpolymer layer.Type: ApplicationFiled: June 18, 2020Publication date: December 23, 2021Applicants: Saudi Arabian Oil Company, Alfaisal UniversityInventors: Wengang Li, Edreese Alsharaeh, Mohan Raj Krishnan
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Publication number: 20210395603Abstract: A coated proppant having a proppant particle, an intermediate cross-linked terpolymer layer encapsulating the proppant particle, and an outer resin layer encapsulating the intermediate cross-linked terpolymer layer. The proppant particle is selected from sand, ceramic, glass, and combinations thereof. The intermediate cross-linked terpolymer layer includes styrene, methyl methacrylate, and divinyl benzene. The outer resin layer includes a cured epoxy resin formed from an epoxy resin and a curing agent.Type: ApplicationFiled: June 18, 2020Publication date: December 23, 2021Applicants: Saudi Arabian Oil Company, Alfaisal UniversityInventors: Wengang Li, Edreese Alsharaeh, Mohan Raj Krishnan
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Patent number: 11059205Abstract: A method for fabricating nanoporous polymer thin film includes steps as follows. A polymer thin film is provided, wherein a polymer solution including a polymer is coated on a substrate to form the polymer thin film. A swelling and annealing process is provided, wherein the polymer thin film is disposed inside a chamber with a vapor of a first solvent, the polymer thin film is swollen and annealed to form a swollen polymer thin film, and the swollen polymer thin film includes the polymer and the first solvent. A freezing process is provided, wherein the swollen polymer thin film is cooled to a temperature less than or equal to a crystallization temperature of the first solvent to crystallize the first solvent. A first solvent removing process is provided, wherein the first solvent is removed with a second solvent, such that a nanoporous polymer thin film is obtained.Type: GrantFiled: August 17, 2018Date of Patent: July 13, 2021Assignee: NATIONAL TSING HUA UNIVERSITYInventors: Rong-Ming Ho, Mohan Raj Krishnan, Suhail Kizhakkeveettil Siddique, Yu-Cheng Chien
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Publication number: 20210026952Abstract: A method, performed by one or more processors, including receiving a plurality of system event records; processing the plurality of system event records using a set of event detectors to determine that a suspicious system event has occurred; sending, to a client device, a plurality of properties associated with the suspicious system event; receiving, from the client device, a selection indicator indicating a selected one or more properties of the plurality of properties; generating one or more new event detectors based on the selected one or more properties; and adding the one or more new event detectors to the set of event detectors.Type: ApplicationFiled: August 23, 2019Publication date: January 28, 2021Inventors: Andrew Eggleton, Elliot Colquhoun, Ranec Highet, Xiao Tang, Tareq Alkhatib, Raj Krishnan, Nick Seetharaman, Brandon Helms, Daniel Kelly, Gautam Punukollu, Morten Kromann
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Patent number: 10772265Abstract: The multi-layered sand assembly comprising neat sand, super-hydrophilic and super-hydrophobic sands for feasible and sustainable desert agriculture is described. The ingredients such as PAM used in the super-hydrophilic sand layer and the PS-PMMA/DVB polymer for the super-hydrophobic layer are relatively less expensive and thus the overall development of the coated sand is economical and cost effective for the mass production of modified sand layers. The tandem action of high water absorption and retention over time by super-hydrophilic sand layer and high water repulsion to avoid water loss by super-hydrophobic sand of the proposed assembly would make the achievable agriculture in desert lands.Type: GrantFiled: November 6, 2019Date of Patent: September 15, 2020Assignee: Alfaisal UniversityInventors: Edreese H Alsharaeh, Mohan Raj Krishnan
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Publication number: 20200204578Abstract: A method, apparatus, and computer program are disclosed. The method may be performed by one or more processors and may comprise receiving first data representing an infrastructure of a computer network, the first data comprising an indication of hosts which form at least part of the computer network and one or more software resources on respective hosts. The method may also comprise receiving second data from a vulnerability scanning software, the second data comprising an indication of one or more vulnerabilities detected in the one or more software resources provided on at least some of the hosts of the computer network. Using a combination of the first data and the second data, output data may be generated representing a risk profile of the computer network infrastructure, the output data indicating one or more subsets of hosts, determined as being at risk of being affected by the detected vulnerabilities by virtue of the software resources they provide for output on a user interface.Type: ApplicationFiled: March 6, 2019Publication date: June 25, 2020Inventors: Elliot Colquhoun, Abhishek Agarwal, Andrew Eggleton, Brandon Helms, Carl Ambroselli, Cem Zorlular, Daniel Kelly, Gautam Punukollu, Jeffrey Tsui, Morten Kromann, Nikhil Seetharaman, Raj Krishnan, Samuel Jones, Tareq Alkhatib, Dayang Shi
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Publication number: 20190255745Abstract: A method for fabricating nanoporous polymer thin film includes steps as follows. A polymer thin film is provided, wherein a polymer solution including a polymer is coated on a substrate to form the polymer thin film. A swelling and annealing process is provided, wherein the polymer thin film is disposed inside a chamber with a vapor of a first solvent, the polymer thin film is swollen and annealed to form a swollen polymer thin film, and the swollen polymer thin film includes the polymer and the first solvent. A freezing process is provided, wherein the swollen polymer thin film is cooled to a temperature less than or equal to a crystallization temperature of the first solvent to crystallize the first solvent. A first solvent removing process is provided, wherein the first solvent is removed with a second solvent, such that a nanoporous polymer thin film is obtained.Type: ApplicationFiled: August 17, 2018Publication date: August 22, 2019Inventors: Rong-Ming HO, Mohan Raj KRISHNAN, Suhail Kizhakkeveettil SIDDIQUE, Yu-Cheng CHIEN
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Patent number: 10232369Abstract: Disclosed are cartridge components, cartridges, systems, and methods for isolating analytes from biological samples. In various aspects, the cartridge components, cartridges, systems, and methods may allow for a rapid procedure that requires a minimal amount of material from complex fluids.Type: GrantFiled: March 24, 2017Date of Patent: March 19, 2019Assignee: BIOLOGICAL DYNAMICS, INC.Inventors: Robert Turner, James Madsen, Kai Yang, Juan Pablo Hinestrosa Salazar, Raj Krishnan, Pedro David Simon Herrera
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Patent number: 9836766Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for personalizing landing pages. In one aspect, a method includes generating, by one or more servers belonging to a first domain and for a request, a personalized landing page that includes the personalized landing page data, wherein the landing page belongs to the first domain, and the landing page includes at least one link to a resource of the first party that belongs to the second domain; and providing, by the one or more servers, the personalized landing page to the user device, wherein the personalized landing page, when processed by the user device, generates a personalized landing page environment that belongs to the first domain.Type: GrantFiled: August 21, 2017Date of Patent: December 5, 2017Assignee: Google Inc.Inventors: Benjamin David Eidelson, Jason Prado, Sean Liu, Doug Sherrets, Raj Krishnan
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Publication number: 20170345061Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for personalizing landing pages. In one aspect, a method includes generating, by one or more servers belonging to a first domain and for a request, a personalized landing page that includes the personalized landing page data, wherein the landing page belongs to the first domain, and the landing page includes at least one link to a resource of the first party that belongs to the second domain; and providing, by the one or more servers, the personalized landing page to the user device, wherein the personalized landing page, when processed by the user device, generates a personalized landing page environment that belongs to the first domain.Type: ApplicationFiled: August 21, 2017Publication date: November 30, 2017Inventors: Benjamin David Eidelson, Jason Prado, Sean Liu, Doug Sherrets, Raj Krishnan
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Patent number: 9785979Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for personalizing landing pages. In one aspect, a method includes generating, by one or more servers belonging to a first domain and for a request, a personalized landing page that includes the personalized landing page data, wherein the landing page belongs to the first domain, and the landing page includes at least one link to a resource of the first party that belongs to the second domain; and providing, by the one or more servers, the personalized landing page to the user device, wherein the personalized landing page, when processed by the user device, generates a personalized landing page environment that belongs to the first domain.Type: GrantFiled: December 15, 2016Date of Patent: October 10, 2017Assignee: Google Inc.Inventors: Benjamin David Eidelson, Jason Prado, Sean Liu, Doug Sherrets, Raj Krishnan
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Patent number: D819681Type: GrantFiled: January 18, 2017Date of Patent: June 5, 2018Assignee: Google LLCInventors: Simon Fung, Thomas Homer Rutledge, Jongmin Kim, Raj Krishnan