Patents by Inventor Kanth Josyula

Kanth Josyula 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).

  • Salt-tolerant self-suspending proppants made without extrusion
    Patent number: 11713415
    Abstract: A self-suspending proppant that resists the adverse effects of calcium and other cations on swelling comprises a proppant substrate particle and a gelatinized non-extruder-derived neutral starch coating on the proppant substrate particle.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: August 1, 2023
    Assignee: Covia Solutions Inc.
    Inventors: Gedeng Ruan, Huaxiang Yang, Kanth Josyula, An Thien Nguyen
  • SALT-TOLERANT SELF-SUSPENDING PROPPANTS MADE WITH NEUTRAL STARCHES
    Publication number: 20220127524
    Abstract: A self-suspending proppant that resists the adverse effects of calcium and other cations on swelling comprises a proppant substrate particle and a gelatinized neutral starch coating on the proppant substrate particle.
    Type: Application
    Filed: November 19, 2019
    Publication date: April 28, 2022
    Applicant: Covia Solutions Inc.
    Inventors: Gedeng RUAN, Huaxiang YANG, Kanth JOSYULA, Vinay MEHTA, An Thien NGUYEN
  • SALT-TOLERANT SELF-SUSPENDING PROPPANTS MADE WITHOUT EXTRUSION
    Publication number: 20220010199
    Abstract: A self-suspending proppant that resists the adverse effects of calcium and other cations on swelling comprises a proppant substrate particle and a gelatinized non-extruder-derived neutral starch coating on the proppant substrate particle.
    Type: Application
    Filed: November 19, 2019
    Publication date: January 13, 2022
    Applicant: Covia Solutions Inc.
    Inventors: Gedeng RUAN, Huaxiang YANG, Kanth JOSYULA, An Thien NGUYEN
  • Flowback resistant proppants
    Patent number: 11021649
    Abstract: A resin coated proppant capable of self-bonding at temperatures as low as 70° F. (˜21° C.) is made from an aqueous dispersion of a self-bonding vinyl aromatic/acrylic ester addition copolymer.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 1, 2021
    Assignee: Fairmount Santrol Inc.
    Inventors: Litao Bai, Kanth Josyula, Vinay Mehta
  • SELF-SUSPENDING PROPPANTS MADE FROM POWDERED HYDROGEL-FORMING POLYMERS
    Publication number: 20190002756
    Abstract: The durability of a self-suspending proppant which is made by applying a layer of a hydrogel-forming polymer in powder form to a binder carried on the surfaces of a proppant particle substrate is improved by applying a crosslinking agent for polymer to these powder particles after they have been bound to the binder.
    Type: Application
    Filed: April 13, 2018
    Publication date: January 3, 2019
    Inventors: Kevin P. Kincaid, Huaxiang Yang, Kanth Josyula, Vinay Mehta
  • PRESSURE ACTIVATED CURABLE RESIN COATED PROPPANTS WITH HIGH OIL PERMEABILITY
    Publication number: 20180327657
    Abstract: A curable resin coated proppant exhibiting high oil permeability when formed into a proppant pack includes an amino and/or hydroxyl functional nonionic surfactant in its curable resin coating. An optional non-aldehyde functional covalent crosslinking agent for the curable polymer resin can also be included in the curable resin coating. If so, the proppant will cure at downhole temperatures as low as 70° F. while simultaneously resisting damage premature curing due to heat and humidity above ground as well as premature consolidation downhole.
    Type: Application
    Filed: November 7, 2016
    Publication date: November 15, 2018
    Inventors: Ramanan Pitchumani, Kanth Josyula, Abraham Rodriguez
  • PRESSURE ACTIVATED CURABLE RESIN COATED PROPPANTS
    Publication number: 20180327656
    Abstract: A curable resin coated proppant which resists damage due to premature curing in the summertime comprises a proppant particle substrate and a curable resin coating on the proppant particle substrate. The curable resin coating comprises a curable polymer resin, a conventional (aldehyde functional) curing agent for the curable polymer resin, an organofunctional compound comprising one or more polyols, one or more polyamines or a mixture thereof, and a non-aldehyde functional covalent crosslinking agent for the polymer resin.
    Type: Application
    Filed: November 7, 2016
    Publication date: November 15, 2018
    Applicant: Fairmount Santrol, Inc.
    Inventors: Ramanan Pitchumani, Kanth Josyula, Abraham Rodriguez
  • FLOWBACK RESISTANT PROPPANTS
    Publication number: 20180265772
    Abstract: A resin coated proppant capable of self-bonding at temperatures as low as 70° F. (˜21° C.) is made from an aqueous dispersion of a self-bonding vinyl aromatic/acrylic ester addition copolymer.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 20, 2018
    Inventors: Litao Bai, Kanth Josyula, Vinay Mehta
  • SELF-SUSPENDING PROPPANTS
    Publication number: 20180155614
    Abstract: A self-suspending proppant comprises a proppant substrate particle and a water-swellable composite coating on the proppant substrate particle comprising the combination of at least two of an anionic hydrogel polymer, a cationic hydrogel polymer and a nonionic hydrogel polymer.
    Type: Application
    Filed: October 12, 2017
    Publication date: June 7, 2018
    Inventors: David S. Soane, Moustafa Aboushabana, James Nathan Ashcraft, Allison Silverstone, Kanth Josyula, Huaxiang Yang, An Thien Nguyen, Vinay Mehta
  • SALT-TOLERANT SELF-SUSPENDING PROPPANTS
    Publication number: 20170335178
    Abstract: A self-suspending proppant that resists the adverse effects of calcium and other cations on swelling comprises a proppant substrate particle and a gelatinized cationic starch coating on the proppant substrate particle.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 23, 2017
    Inventors: Moustafa Aboushabana, Huaxiang Yang, Kanth Josyula, Vinay Mehta
  • Metal amidoborane compositions and processes for their preparation
    Patent number: 8920760
    Abstract: The present invention provides compositions comprising a metal amidoborane and an amine, and processes for preparing the metal amidoborane compositions. In particular, the process comprises contacting ammonia borane with a metal amide in the presence of an amine solvent to form the metal amidoborane composition. The invention also provides methods for generating hydrogen, wherein the method comprises heating the metal amidoborane composition such that hydrogen is released.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: December 30, 2014
    Assignee: Sigma-Aldrich Co. LLC
    Inventors: Viktor Balema, Kanth Josyula, Guolin Xu, Nathaniel Wallock, Scott Batcheller, Peng Gao, Shashi Jasty
  • METAL AMIDOBORANE COMPOSITIONS AND PROCESSES FOR THEIR PREPARATION
    Publication number: 20120301382
    Abstract: The present invention provides compositions comprising a metal amidoborane and an amine, and processes for preparing the metal amidoborane compositions. In particular, the process comprises contacting ammonia borane with a metal amide in the presence of an amine solvent to form the metal amidoborane composition. The invention also provides methods for generating hydrogen, wherein the method comprises heating the metal amidoborane composition such that hydrogen is released.
    Type: Application
    Filed: April 13, 2010
    Publication date: November 29, 2012
    Applicant: SIGMA ALDRICH CO. LLC
    Inventors: Viktor Balema, Kanth Josyula, Guolin Xu, Nathaniel Wallock, Scott Batcheller, Peng Gao, Shashi Jasty
  • STABILIZED DEUTEROBORANE-TETRAHYDROFURAN COMPLEX
    Publication number: 20070197695
    Abstract: A stabilized deuteroborane-tetrahydrofuran complex is disclosed. Also disclosed are processes for the preparation of the deuteroborane-tetrahydrofuran complex and methods of storing and transporting the prepared complex. The deuteroborane-tetrahydrofuran complexes exhibit enhanced shelf life and increased self-accelerated decomposition temperatures.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 23, 2007
    Applicant: SIGMA-ALDRICH CO.
    Inventors: Mark Potyen, Kanth Josyula, Peng Gao, Christopher Hewitt, Robert Todd