Patents by Inventor Davit E. Sharoyan

Davit E. Sharoyan 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: 11066785
    Abstract: A method is provided for the improvement of fabric release in applications such as tissue and towel making processes. The method comprises applying a micro-emulsion of hydrophobic agents and surfactants to the surface of a structured fabric used in sheet making applications of a tissue machine.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: July 20, 2021
    Assignee: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Davit E. Sharoyan, Doeung David Choi
  • Patent number: 10876254
    Abstract: A method of increasing chemical efficiency of chemical additives in a papermaking system includes the steps of providing thick stock pulp comprising soluble lignin, process water, and at least about 2% by weight of cellulosic fiber based on total weight of thick stock pulp, and adding at least one laccase enzyme and at least one organic polymer to the thick stock pulp to reduce the amount of soluble lignin therein. The organic polymer is chosen from cationic polymers, non-ionic polymers and combinations thereof.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: December 29, 2020
    Assignee: SOLENIS TECHNOLOGIES, L.P.
    Inventors: John C. Harrington, Mingxiang Luo, Davit E. Sharoyan, Sujan Singh
  • Patent number: 10844544
    Abstract: A method of measuring hydrophobic contaminants in a pulp slurry or a papermaking system includes the steps of providing an aqueous paper mill sample, filtering the aqueous paper mill sample to produce a filtrate comprising particles, and collecting an image of the particles in a measured volume of the filtrate. The method also includes the steps of analyzing the image to determine a size and morphology of the particles in the measured volume of filtrate, identifying spherical particles having a size of from about 1 micron to about 20 microns in the measured volume of filtrate, and quantifying a number of the spherical particles having the size of from about 1 micron to about 20 microns in the measured volume of filtrate. This method is useful for papermakers for deposition diagnostics, prevention, and contaminant control treatment optimization.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: November 24, 2020
    Assignee: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Davit E. Sharoyan, Fushan Zhang, Matthew John Barrett
  • Publication number: 20200325627
    Abstract: A method is provided for the improvement of fabric release in applications such as tissue and towel making processes. The method comprises applying a micro-emulsion of hydrophobic agents and surfactants to the surface of a structured fabric used in sheet making applications of a tissue machine.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 15, 2020
    Applicant: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Davit E. Sharoyan, Doeung David Choi
  • Publication number: 20190153675
    Abstract: A method of measuring hydrophobic contaminants in a pulp slurry or a papermaking system includes the steps of providing an aqueous paper mill sample, filtering the aqueous paper mill sample to produce a filtrate comprising particles, and collecting an image of the particles in a measured volume of the filtrate. The method also includes the steps of analyzing the image to determine a size and morphology of the particles in the measured volume of filtrate, identifying spherical particles having a size of from about 1 micron to about 20 microns in the measured volume of filtrate, and quantifying a number of the spherical particles having the size of from about 1 micron to about 20 microns in the measured volume of filtrate. This method is useful for papermakers for deposition diagnostics, prevention, and contaminant control treatment optimization.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 23, 2019
    Applicant: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Davit E. Sharoyan, Fushan Zhang, Matthew John Barrett
  • Publication number: 20190100875
    Abstract: A method of increasing chemical efficiency of chemical additives in a papermaking system includes the steps of providing thick stock pulp comprising soluble lignin, process water, and at least about 2% by weight of cellulosic fiber based on total weight of thick stock pulp, and adding at least one laccase enzyme and at least one organic polymer to the thick stock pulp to reduce the amount of soluble lignin therein. The organic polymer is chosen from cationic polymers, non-ionic polymers and combinations thereof.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 4, 2019
    Applicant: SOLENIS TECHNOLOGIES, L.P.
    Inventors: John C. Harrington, Mingxiang Luo, Davit E. Sharoyan, Sujan Singh
  • Publication number: 20180149779
    Abstract: The current invention provides for a composition and method for the improvement of fabric release in applications such as tissue and towel making processes. The method comprises treating the surface of a fabric in structured sheet making applications using compositions containing hydrophobic quaternary amines in combination with other hydrophobes and surfactants.
    Type: Application
    Filed: January 23, 2018
    Publication date: May 31, 2018
    Inventors: Doeung David Choi, Davit E. Sharoyan, Christopher P. Dilkus
  • Patent number: 9945076
    Abstract: The present invention provides for a method of producing a creped paper and the crepe paper products made using this method. The method includes treating the surface of a crepe fiber web and/or surface of a Yankee drum dryer or cylinder with compositions containing a combination of hydrophobes and surfactants and wherein these compositions have been subjected to physical treatments to reduce the mean particle size to about 1 micron (?m) or less.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: April 17, 2018
    Assignee: Solenis Technologies, L.P.
    Inventors: Doeung David Choi, Davit E Sharoyan, Jeffrey Allan Tunell
  • Publication number: 20160168798
    Abstract: The present invention provides for a method of producing a creped paper and the crepe paper products made using this method. The method includes treating the surface of a crepe fiber web and/or surface of a Yankee drum dryer or cylinder with compositions containing a combination of hydrophobes and surfactants and wherein these compositions have been subjected to physical treatments to reduce the mean particle size to about 1 micron (?m) or less.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 16, 2016
    Inventors: Doeung David Choi, Davit E. Sharoyan, Jeffrey Allan Tunell
  • Publication number: 20140314962
    Abstract: The current invention provides for a composition and method for the improvement of fabric release in applications such as tissue and towel making processes. The method comprises treating the surface of a fabric in structured sheet making applications using compositions containing hydrophobic quaternary amines in combination with other hydrophobes and surfactants.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 23, 2014
    Applicant: HERCULES INCORPORATED
    Inventors: Doeung David Choi, Davit E. Sharoyan, Christopher P. Dilkus
  • Patent number: 8865263
    Abstract: Compositions and methods for reduction in adhesion between wet paper web and roll surfaces in papermaking process are disclosed. The method is particularly useful for improvements in press section roll release.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: October 21, 2014
    Assignee: Solenis Technologies, L.P.
    Inventors: Davit E. Sharoyan, Tien-Feng Ling, Scott T. Schnelle
  • Publication number: 20140018432
    Abstract: Method of single step electrochemical generation of chlorinated urea, chlorinated dimethylurea and other chlorourea derivatives is disclosed. The chlorinated species are generated in situ and upon demand and can be used for microbial control in industrial water treatment.
    Type: Application
    Filed: June 5, 2013
    Publication date: January 16, 2014
    Inventor: Davit E. Sharoyan
  • Publication number: 20120045587
    Abstract: Compositions and methods for reduction in adhesion between wet paper web and roll surfaces in papermaking process are disclosed. The method is particularly useful for improvements in press section roll release.
    Type: Application
    Filed: August 22, 2011
    Publication date: February 23, 2012
    Inventors: Davit E. Sharoyan, Tien-Feng Ling, Scott T. Schnelle
  • Patent number: 8052840
    Abstract: Compositions and methods for the removal of resin from wood chips processed in a Kraft pulping process are disclosed. The method is particularly useful for removing triterpene and triterpenoid resin.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: November 8, 2011
    Assignee: Hercules Incorporated
    Inventor: Davit E. Sharoyan
  • Publication number: 20100038043
    Abstract: Compositions and methods for the removal of resin from wood chips processed in a Kraft pulping process are disclosed. The method is particularly useful for removing triterpene and triterpenoid resin.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 18, 2010
    Inventor: Davit E. Sharoyan