Patents by Inventor Sathanjheri A. Ravishankar

Sathanjheri A. Ravishankar 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).

  • Nonwoven abrasive belt with flexible joint
    Patent number: 11642758
    Abstract: This disclosure, in general, relates to nonwoven abrasive belts including flexible butt joints and methods of making and using such belts and joints.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: May 9, 2023
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Zhong Xu, Sathanjheri Ravishankar, William C. Rice, Fernando J. Ramirez, Jose J. Rangel, Shyiguei Hsu, Ying Cai, Jeremy B. Spencer
  • FIXED ABRASIVE BUFF
    Publication number: 20210308833
    Abstract: Systems and methods including providing a fixed abrasive buff having a central hub and a plurality of fabric layers affixed to the central hub. An abrasive composition is dispersed throughout the fabric layers and includes a polymeric binder and a plurality of abrasive particles dispersed in the polymeric binder. The content of the abrasive particles at an outer edge of the plurality of fabric layers is higher than the content of the abrasive particles at an inner edge of the plurality of fabric layers.
    Type: Application
    Filed: March 25, 2021
    Publication date: October 7, 2021
    Inventors: Sathanjheri RAVISHANKAR, Paul S. GOLDSMITH, Daniel E. SYMEON
  • NONWOVEN ABRASIVE BELT WITH FLEXIBLE JOINT
    Publication number: 20200030941
    Abstract: This disclosure, in general, relates to nonwoven abrasive belts including flexible butt joints and methods of making and using such belts and joints.
    Type: Application
    Filed: July 25, 2019
    Publication date: January 30, 2020
    Inventors: Zhong XU, Sathanjheri RAVISHANKAR, William C. RICE, Fernando J. RAMIREZ, Jose J. RANGEL, Shyiguei HSU, Ying CAI, Jeremy B. SPENCER
  • Electrostatic modification reagent and process for enhancing electrostatic separation in the beneficiation of ores
    Patent number: 10245596
    Abstract: An electrostatic modification reagent and a process for beneficiating a mineral substrate by electrostatic separation as described herein. The electrostatic modification reagent may be used in an electric separation process for separating components from a mineral ore or sand.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: April 2, 2019
    Assignee: Cytec Technology Corp.
    Inventors: Sathanjheri A. Ravishankar, Harsha Kolla, Bing Wang
  • ELECTROSTATIC MODIFICATION REAGENT AND PROCESS FOR ENHANCING ELECTROSTATIC SEPARATION IN THE BENEFICIATION OF ORES
    Publication number: 20160310963
    Abstract: An electrostatic modification reagent and a process for beneficiating a mineral substrate by electrostatic separation as described herein. The electrostatic modification reagent may be used in an electric separation process for separating components from a mineral ore or sand.
    Type: Application
    Filed: July 1, 2016
    Publication date: October 27, 2016
    Applicant: Cytec Technology Corp.
    Inventors: Sathanjheri A. Ravishankar, Harsha Kolla, Bing Wang
  • Process for enhancing electrostatic separation in the beneficiation of ores
    Patent number: 9403173
    Abstract: An electrostatic modification reagent as described herein. The electrostatic modification reagent may be used in an electric separation process for separating components from a mineral ore or sand.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: August 2, 2016
    Assignee: CYTEC TECHNOLOGY CORP.
    Inventors: Sathanjheri A. Ravishankar, Harsha Kolla, Bing Wang
  • Process and reagents for the inhibition or reduction of scale formation during phosphoric acid production
    Patent number: 9242863
    Abstract: Processes and reagents for inhibiting or eliminating scale formation during wet-process phosphoric acid production are provided and include adding to a wet-process phosphoric acid production stream a scale inhibiting amount of a reagent having an aliphatic or aromatic compound containing at least two hydroxy groups, and at least one amine.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: January 26, 2016
    Assignee: CYTEC TECHNOLOGY CORP.
    Inventors: Sathanjheri A. Ravishankar, Bing Wang
  • Preventing or reducing scale in wet-process phosphoric acid production
    Patent number: 9028787
    Abstract: Methods for preventing or reducing the formation of scale in a wet-process phosphoric acid production process by intermixing a water-soluble functional organic reagent with a phosphoric acid at one or more step of the phosphoric acid production process in an amount sufficient to prevent or reduce at least one species of scale are provided.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: May 12, 2015
    Assignee: Cytec Technology Corp.
    Inventors: Sathanjheri A. Ravishankar, Bing Wang
  • Preventing or reducing scale in wet-process phosphoric acid production
    Patent number: 8900539
    Abstract: Methods for preventing or reducing the formation of scale in a wet-process phosphoric acid production process by intermixing a scale inhibiting reagent at one or more step of the phosphoric acid production process in an amount sufficient to prevent or reduce scale are provided.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: December 2, 2014
    Assignee: Cytec Technology Corp.
    Inventors: Sathanjheri A. Ravishankar, Bing Wang
  • Process and magnetic reagent for the removal of impurities from minerals
    Patent number: 8827079
    Abstract: A magnetic reagent contains magnetic microparticles and a compound of the formula (I) as defined herein. The magnetic reagent may be used in a magnetic separation process for the removal of impurities from mineral substrates.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: September 9, 2014
    Assignee: Cytec Technology Corp.
    Inventors: Sathanjheri A. Ravishankar, Abdul K. Gorken
  • COMPOSITIONS AND METHODS FOR REDUCING FUGITIVE DUST PARTICLES
    Publication number: 20140150136
    Abstract: Coating compositions of an aqueous mineral slurry having a dust suppressing amount of an absorbent and/or non-absorbent silicate mineral, and methods of using same for coating dust producing substrates, such as single or multi-nutrient fertilizers, with a substantially continuous outer or top layer for reducing or eliminating dissemination of fugitive dust particles, are provided herein.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 29, 2014
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventor: Sathanjheri RAVISHANKAR
  • PREVENTING OR REDUCING SCALE IN WET-PROCESS PHOSPHORIC ACID PRODUCTION
    Publication number: 20120244058
    Abstract: Methods for preventing or reducing the formation of scale in a wet-process phosphoric acid production process by intermixing a scale inhibiting reagent at one or more step of the phosphoric acid production process in an amount sufficient to prevent or reduce scale are provided.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 27, 2012
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Sathanjheri A. RAVISHANKAR, Bing WANG
  • PROCESS AND MAGNETIC REAGENT FOR THE REMOVAL OF IMPURITIES FROM MINERALS
    Publication number: 20120001115
    Abstract: A magnetic reagent contains magnetic microparticles and a compound of the formula (I) as defined herein. The magnetic reagent may be used in a magnetic separation process for the removal of impurities from mineral substrates.
    Type: Application
    Filed: September 8, 2011
    Publication date: January 5, 2012
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Sathanjheri A. RAVISHANKAR, Abdul K. GORKEN
  • Process and magnetic reagent for the removal of impurities from minerals
    Patent number: 8033398
    Abstract: A magnetic reagent contains magnetic microparticles and a compound of the formula (I) as defined herein. The magnetic reagent may be used in a magnetic separation process for the removal of impurities from mineral substrates.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: October 11, 2011
    Assignee: Cytec Technology Corp.
    Inventors: Sathanjheri A. Ravishankar, Abdul K. Gorken
  • Process and Reagents for the Inhibition or Reduction of Scale Formation During Phosphoric Acid Production
    Publication number: 20110076218
    Abstract: Processes and reagents for inhibiting or eliminating scale formation during wet-process phosphoric acid production are provided and include adding to a wet-process phosphoric acid production stream a scale inhibiting amount of a reagent having an aliphatic or aromatic compound containing at least two hydroxy groups, and at least one amine.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Sathanjheri A. RAVISHANKAR, Bing WANG
  • PREVENTING OR REDUCING SCALE IN WET-PROCESS PHOSPHORIC ACID PRODUCTION
    Publication number: 20110076219
    Abstract: Methods for preventing or reducing the formation of scale in a wet-process phosphoric acid production process by intermixing a water-soluble functional organic reagent with a phosphoric acid at one or more step of the phosphoric acid production process in an amount sufficient to prevent or reduce at least one species of scale are provided.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Sathanjheri A. RAVISHANKAR, Bing WANG
  • PROCESS FOR ENHANCING ELECTROSTATIC SEPARATION IN THE BENEFICIATION OF ORES
    Publication number: 20100108573
    Abstract: An electrostatic modification reagent as described herein. The electrostatic modification reagent may be used in an electric separation process for separating components from a mineral ore or sand.
    Type: Application
    Filed: October 21, 2009
    Publication date: May 6, 2010
    Inventors: Sathanjheri A. Ravishankar, Harsha Kolla, Bing Wang
  • PROCESS FOR THE REMOVAL OF IMPURITIES FROM CARBONATE MINERALS
    Publication number: 20080164140
    Abstract: A process for the beneficiation of carbonate mineral substrates by magnetic separation is defined herein wherein a phosphorus or nitrogen containing organic compound or reagent and a plurality of magnetic particles are intermixed with a carbonate containing mineral substrate, a magnetic field is applied to the mixture and a value mineral is thereby separated from a non-value mineral.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 10, 2008
    Inventors: Sathanjheri A. Ravishankar, Josanlet C. Villegas, Bing Wang
  • Process and magnetic reagent for the removal of impurities from minerals
    Publication number: 20070007180
    Abstract: A magnetic reagent contains magnetic microparticles and a compound of the formula (I) as defined herein. The magnetic reagent may be used in a magnetic separation process for the removal of impurities from mineral substrates.
    Type: Application
    Filed: December 6, 2005
    Publication date: January 11, 2007
    Inventors: Sathanjheri Ravishankar, Abdul Gorken
  • Process and magnetic reagent for the removal of impurities from minerals
    Publication number: 20070007179
    Abstract: A magnetic reagent contains magnetic microparticles and a compound of the formula (I) as defined herein. The magnetic reagent may be used in a magnetic separation process for the removal of impurities from mineral substrates.
    Type: Application
    Filed: July 6, 2005
    Publication date: January 11, 2007
    Inventors: Sathanjheri Ravishankar, Abdul Gorken