Patents by Inventor Subramanian Kesavan

Subramanian Kesavan 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).

  • Patent number: 11960564
    Abstract: Data processing systems and methods, according to various embodiments, are adapted for determining a categorization for each tracking tool that executes on a particular webpage based on a variety of criteria, such as the purpose of the tracking tool and its source script. The system may compare the characteristics of tracking tools on a webpage to a database of known tracking tools to determine the appropriate categorization. When a user visits the webpage, the system analyzes these categories and determines whether the tracking tool should be permitted to run based on the categories and/or other criteria, such as whether the user has consented to the use of that type of tracking tool.
    Type: Grant
    Filed: February 2, 2023
    Date of Patent: April 16, 2024
    Assignee: OneTrust, LLC
    Inventors: Patrick Whitney, Kevin Jones, Brian Kelly, Subramanian Viswanathan, Casey Hill, Jeffrey Baucom, Madhusudhan Kunhambu, Mithun Babu, Rajneesh Kesavan, Santosh Kumar Koti, Sathish Gopalakrishnan, Anand Balasubramanian, Mohamed Kabad, Jayamohan Puthenveetil, Jonathan Blake Brannon
  • Patent number: 11649709
    Abstract: Compositions and methods for fracturing a subterranean formation are presented. Also provided are compositions and methods for reducing friction-related losses in a well treatment fluid. In general, the compositions include a copolymer that includes one or more vinylphosphonic acid (“VPA”) monomers.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: May 16, 2023
    Assignee: ENERGY SOLUTIONS (US) LLC
    Inventors: Subramanian Kesavan, Genyao Lin, Jian Zhou, Hoang Van Le, Changmin Jung, Qi Qu
  • Patent number: 11485901
    Abstract: Polymeric systems useful for maintaining particle dispersions for extended periods of time.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 1, 2022
    Assignee: RHODIA OPERATIONS
    Inventors: Lingjuan Shen, Qi Qu, Jian Zhou, Arnaud Cadix, Ruela Pabalan, Subramanian Kesavan, David James Wilson
  • Publication number: 20220000100
    Abstract: A concentrated adjuvant composition comprises an incompletely hydrated water-soluble polymer suspended in a liquid medium, a suspension agent, a surfactant, optionally, a glycol, glycol derivative, glycerol or glycerol derivative, and a water conditioning component.
    Type: Application
    Filed: June 10, 2021
    Publication date: January 6, 2022
    Applicant: RHODIA OPERATIONS
    Inventors: Hong Liu, Chunhui Bao, Subramanian Kesavan, Charles Manzi-Nshuti
  • Patent number: 11186758
    Abstract: A method of reducing shear recovery time of a viscosifying surfactant fluid system that includes introducing a viscosifying surfactant fluid system into a subterranean formation, wherein the fluid includes a major portion of a surfactant and a hydrophobically-modified associative polymer in a concentration sufficient to shorten the shear recovery time of the fluid system compared to the shear recovery time of the fluid system without the polymer.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: November 30, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Rose Ndong, Genyao Lin, Subramanian Kesavan, Louis Villafane, Jian Zhou
  • Publication number: 20210207464
    Abstract: Compositions and methods for fracturing a subterranean formation are presented. Also provided are compositions and methods for reducing friction-related losses in a well treatment fluid. In general, the compositions include a copolymer that includes one or more vinylphosphonic acid (“VPA”) monomers.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 8, 2021
    Applicant: RHODIA OPERATIONS
    Inventors: Subramanian Kesavan, Genyao Lin, Jian Zhou, Hoang Van Le, Changmin Jung, Qi Qu
  • Patent number: 10982519
    Abstract: Compositions and methods for fracturing a subterranean formation are presented. Also provided are compositions and methods for reducing friction-related losses in a well treatment fluid. In general, the compositions include a copolymer that includes one or more vinylphosphonic acid (“VPA”) monomers.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: April 20, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Subramanian Kesavan, Genyao Lin, Jian Zhou, Hoang Van Le, Changmin Jung, Qi Qu
  • Patent number: 10844277
    Abstract: A method of acidizing a formation penetrated by a wellbore that includes the steps of injecting into the wellbore at a pressure below formation fracturing pressure a treatment fluid that includes a gelling fluid including a gelling agent and a hydrophobically-modified associative polymer, and an aqueous acid; and allowing the treatment fluid to acidize the formation.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: November 24, 2020
    Assignee: RHODIA OPERATIONS
    Inventors: Rose Ndong, Juliette Triquet, Genyao Lin, Subramanian Kesavan, Louis Villafane, Jian Zhou, Ahmed Rabie
  • Patent number: 10844140
    Abstract: Products and processes that are related to phosphonated polysaccharide compositions, including phosphonated polysaccharide gels, having a substituent degree of substitution with a lower limit of 0.02 and an upper limit of 3, and having a weight average molecular weight with an upper limit of 5,000,000 g/mole, as well as to oil field application or fracturing fluid compositions comprising such phosphonated polysaccharide compositions.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: November 24, 2020
    Assignee: RHODIA OPERATIONS
    Inventors: Laurianne Timbart, Gilda Lizarraga, Gary Woodward, Subramanian Kesavan, David James Wilson
  • Publication number: 20190202941
    Abstract: Products and processes that are related to phosphonated polysaccharide compositions, including phosphonated polysaccharide gels, having a substituent degree of substitution with a lower limit of 0.02 and an upper limit of 3, and having a weight average molecular weight with an upper limit of 5,000,000 g/mole, as well as to oil field application or fracturing fluid compositions comprising such phosphonated polysaccharide compositions.
    Type: Application
    Filed: March 6, 2019
    Publication date: July 4, 2019
    Applicant: RHODIA OPERATIONS
    Inventors: Laurianne TIMBART, Gilda LIZARRAGA, Gary WOODWARD, Subramanian KESAVAN, David James WILSON
  • Patent number: 10323051
    Abstract: A method of controlling or arresting the rate of depolymerization of a polymer composition during a biocide treatment, and use of such methods in oilfield and industrial applications. Also disclosed are methods of preparing a visco-stable application fluid containing a biocide in an amount effective to reduce bacteria count, as well as additive compositions capable of reducing bacteria count in application fluids while maintaining viscosity in such fluids. Also disclosed are methods of preparing biocide-containing application fluids with improved friction reducing properties, as well as related compositions.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: June 18, 2019
    Assignee: RHODIA OPERATIONS
    Inventors: Gary Woodward, Subramanian Kesavan, Adedamola Adedeji, Timothy Curtis
  • Publication number: 20190090477
    Abstract: A concentrated adjuvant composition comprises an incompletely hydrated water-soluble polymer suspended in a liquid medium, a suspension agent, a surfactant, optionally, a glycol, glycol derivative, glycerol or glycerol derivative, and a water conditioning component.
    Type: Application
    Filed: September 21, 2018
    Publication date: March 28, 2019
    Applicant: RHODIA OPERATIONS
    Inventors: Hong LIU, Chunhui BAO, Subramanian KESAVAN, Charles MANZI-NSHUTI
  • Patent number: 10239960
    Abstract: Products and processes that are related to phosphonated polysaccharide compositions, including phosphonated polysaccharide gels, having a substituent degree of substitution with a lower limit of 0.02 and an upper limit of 3, and having a weight average molecular weight with an upper limit of 5,000,000 g/mole, as well as to oil field application or fracturing fluid compositions comprising such phosphonated polysaccharide compositions.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: March 26, 2019
    Assignee: Rhodia Operations
    Inventors: Laurianne Timbart, Gilda Lizarraga, Gary Woodward, Subramanian Kesavan, David James Wilson
  • Publication number: 20180148635
    Abstract: The present disclosure provides polymeric systems useful for maintaining particle dispersions for extended periods of time.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Applicant: RHODIA OPERATIONS
    Inventors: Lingjuan SHEN, Qi QU, Jian ZHOU, Arnaud CADIX, Ruela PABALAN, Subramanian KESAVAN, David James WILSON
  • Publication number: 20180073340
    Abstract: Compositions and methods for fracturing a subterranean formation are presented. Also provided are compositions and methods for reducing friction-related losses in a well treatment fluid. In general, the compositions include a copolymer that includes one or more vinylphosphonic acid (“VPA”) monomers.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 15, 2018
    Applicant: Rhodia Operations
    Inventors: Subramanian Kesavan, Genyao Lin, Jian Zhou, Hoang Van Le, Changmin Jung, Qi Qu
  • Publication number: 20170342314
    Abstract: A method of acidizing a formation penetrated by a wellbore that includes the steps of injecting into the wellbore at a pressure below formation fracturing pressure a treatment fluid that includes a gelling fluid including a gelling agent and a hydrophobically-modified associative polymer, and an aqueous acid; and allowing the treatment fluid to acidize the formation.
    Type: Application
    Filed: May 25, 2017
    Publication date: November 30, 2017
    Applicant: RHODIA OPERATIONS
    Inventors: Rose NDONG, Juliette TRIQUET, Genyao LIN, Subramanian KESAVAN, Louis VILLAFANE, Jian ZHOU, Ahmed RABIE
  • Publication number: 20170342313
    Abstract: A method of reducing shear recovery time of a viscosifying surfactant fluid system that includes introducing a viscosifying surfactant fluid system into a subterranean formation, wherein the fluid includes a major portion of a surfactant and a hydrophobically-modified associative polymer in a concentration sufficient to shorten the shear recovery time of the fluid system compared to the shear recovery time of the fluid system without the polymer.
    Type: Application
    Filed: May 25, 2017
    Publication date: November 30, 2017
    Applicant: RHODIA OPERATIONS
    Inventors: Rose NDONG, Genyao LIN, Subramanian KESAVAN, Louis VILLAFANE, Jian ZHOU
  • Patent number: 9732213
    Abstract: A composition for enhancing fluid viscosity including a mixture of at least one cationic or cationizable polymer and at least one anionic or anionizable (hydrolysable) polymer. The composition has a zeta potential at 25° C. in the range of 0.5 to 100 mV or ?0.5 to ?100 mV, typically 1 to 60 mV or ?1 to ?60 mV, or is a precursor convertible at a temperature of 100 to 250° C. to the composition having a zeta potential at 25° C. of 0.5 to 100 mV or ?0.5 to ?100 mV, typically 1 to 60 mV or ?1 to ?60 mV. Typically the compositions exhibit salt tolerance and interaction of both polymers at very high temperatures (>300° F.) such that the system exhibits an increase of viscosity at extreme temperatures. The compositions are useful for hydraulic fracturing, enhanced oil recovery, subterranean acidization, personal care as well as home and industrial cleaners.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 15, 2017
    Assignee: RHODIA OPERATIONS
    Inventors: Ruela Talingting Pabalan, Nemesio Martinez-Castro, Subramanian Kesavan, Marie-Pierre Labeau, Bruno Langlois
  • Publication number: 20170088769
    Abstract: Products, methods and processes for manufacture that are related to application fluid, more specifically, to oil field compositions that include a fracturing fluid composition prepared by a process including at least the steps of:—contacting a polysaccharide particle with water to produce process water, and—separating the process water from the polysaccharide particle, whereby the separated process water comprises at least part of the fracturing fluid composition.
    Type: Application
    Filed: May 12, 2015
    Publication date: March 30, 2017
    Applicant: RHODIA OPERATIONS
    Inventors: Subramanian KESAVAN, Ruela PABALAN, Kailas SAWANT, Kevin FREDERICK
  • Publication number: 20160362502
    Abstract: Products and processes that are related to phosphonated polysaccharide compositions, including phosphonated polysaccharide gels, having a substituent degree of substitution with a lower limit of 0.02 and an upper limit of 3, and having a weight average molecular weight with an upper limit of 5,000,000 g/mole, as well as to oil field application or fracturing fluid compositions comprising such phosphonated polysaccharide compositions.
    Type: Application
    Filed: June 10, 2016
    Publication date: December 15, 2016
    Applicant: RHODIA OPERATIONS
    Inventors: Laurianne TIMBART, Gilda LIZARRAGA, Gary WOODWARD, Subramanian KESAVAN, David James WILSON