Patents by Inventor Zheng Tan

Zheng Tan 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: 8906476
    Abstract: A composition is provided, which comprises a water-soluble salt of a divalent metal; a complexing agent having an affinity for the divalent metal; and an optical brightening agent. Methods of using the composition, and recording sheets which include the composition, are also disclosed.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 9, 2014
    Assignee: International Paper Company
    Inventors: Zheng Tan, Sen Yang, Jingxiu Wan, Benny J. Skaggs, Benjamin Thomas Liguzinski
  • Publication number: 20140349835
    Abstract: The present invention relates to compositions containing stabilized and/or activated urease inhibitors, as well methods of making and using the same.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 27, 2014
    Inventors: ZHENG TAN, GOPAL C. GOYAL, LINNEA J. SHAVER
  • Publication number: 20140335367
    Abstract: A composition is provided, which comprises a water-soluble salt of a divalent metal; a complexing agent having an affinity for the divalent metal; and an optical brightening agent. Methods of using the composition, and recording sheets which include the composition, are also disclosed.
    Type: Application
    Filed: July 23, 2014
    Publication date: November 13, 2014
    Inventors: ZHENG TAN, JINGXIU WAN, BENNY J. SKAGGS, SEN YANG, BENJAMIN THOMAS LIGUZINSKI
  • Publication number: 20140303264
    Abstract: The present invention is directed to a process comprising: (i) extracting ?50% by weight of all carrageenan from a carrageenan-containing seaweed material to obtain a cellulose-containing seaweed residue; and (ii) purifying the cellulose-containing seaweed residue by at least one of hydrolysis or bleaching. The present invention is also directed to the cellulose obtained from the process, as well as products containing the cellulose-containing seaweed material.
    Type: Application
    Filed: August 31, 2012
    Publication date: October 9, 2014
    Applicant: FMC CORPORATION
    Inventors: Zheng Tan, Michael Sestrick, William Matakas, Aaron Chip Venables
  • Patent number: 8809616
    Abstract: The present invention relates to compositions containing stabilized and/or activated urease inhibitors, as well as methods of making and using the same.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: August 19, 2014
    Assignee: International Paper Company
    Inventors: Zheng Tan, Gopal C. Goyal, Linnea J. Shaver
  • Publication number: 20140194404
    Abstract: This invention relates to amidopyrazole compounds that are inhibitors of Interleukin receptor-associated kinases, in particular IRAK-4, and are useful in the treatment of cellular proliferative diseases, for example, cancer, hyperplasia, restenosis, cardiac hypertrophy, immune disorders and inflammation.
    Type: Application
    Filed: March 21, 2012
    Publication date: July 10, 2014
    Inventors: William T. McElroy, Guoqing Li, Ginny Dai Ho, Zheng Tan, Sunil Paliwal, William Michael Seganish, Deen Tulshian, John Lampe, Joey L. Methot, Hua Zhou, Michael D. Altman, Liang Zhu
  • Patent number: 8753484
    Abstract: A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: June 17, 2014
    Assignee: International Paper Company
    Inventors: Zheng Tan, Damaris Lorenzoni, Gopal Goyal, Sen Yang
  • Patent number: 8685967
    Abstract: The present invention relates to substituted triazolopyridines and analogs thereof, the use of the compounds as phosphodiesterase 10 (PDE10) inhibitors for the treatment of PDE10-modulated disorders, to pharmaceutical compositions comprising the compounds.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: April 1, 2014
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Ginny D. Ho, Elizabeth M. Smith, Eugenia Y. Kiselgof, Kallol Basu, Zheng Tan, Brian McKittrick, Deen Tulshian
  • Publication number: 20140000825
    Abstract: A method for alteration of the morphology of cellulose fibers, particularly softwood fibers, by (a) subjecting the fibers to a metal ion-activated peroxide treatment carried out at a pH of between about 1 and about 9, preferably between 3 and 7, and (b) subjecting the treated fibers to a refining treatment thereby converts SW fibers to HW-like fibers in many respects. The metal ion-activated peroxide treatment has been noted to act on pulp cellulose and hemi-cellulose, causing oxidation and oxidative degradation of cellulose fibers. The chemical treatment of the pulp, taken alone, is not sufficient to attain the desired modification of the morphology of the fibers, however, subsequent refining or like mechanical treatment of the chemically-treated fibers to achieve a given degree of refinement of the fibers requires dramatically less refining energy to achieve a desired end point of refinement and to impart other desirable properties to the pulp.
    Type: Application
    Filed: September 4, 2013
    Publication date: January 2, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: ZHENG TAN, XUAN T. NGUYEN, KAREN MAURER
  • Publication number: 20130133849
    Abstract: A composition is provided, which comprises a water-soluble salt of a divalent metal; a complexing agent having an affinity for the divalent metal; and an optical brightening agent. Methods of using the composition, and recording sheets which include the composition, are also disclosed.
    Type: Application
    Filed: January 25, 2013
    Publication date: May 30, 2013
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: ZHENG TAN, Sen Yang, Jingxiu Wan, Benny J. Skaggs, Benjamin Thomas Liguzinski
  • Publication number: 20130098571
    Abstract: A method for alteration of the morphology of cellulose fibers, particularly softwood fibers, by (a) subjecting the fibers to a metal ion-activated peroxide treatment carried out at a pH of between about 1 and about 9, preferably between 3 and 7, and (b) subjecting the treated fibers to a refining treatment thereby converts SW fibers to HW-like fibers in many respects. The metal ion-activated peroxide treatment has been noted to act on pulp cellulose and hemi-cellulose, causing oxidation and oxidative degradation of cellulose fibers. The chemical treatment of the pulp, taken alone, is not sufficient to attain the desired modification of the morphology of the fibers, however, subsequent refining or like mechanical treatment of the chemically-treated fibers to achieve a given degree of refinement of the fibers requires dramatically less refining energy to achieve a desired end point of refinement and to impart other desirable properties to the pulp.
    Type: Application
    Filed: September 7, 2012
    Publication date: April 25, 2013
    Applicant: International Paper Company
    Inventors: Zheng Tan, Xuan T. Nguyen, Karen L. Maurer
  • Publication number: 20130092336
    Abstract: A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.
    Type: Application
    Filed: May 21, 2012
    Publication date: April 18, 2013
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: ZHENG TAN, GOPAL GOYAL, ALEXANDER A. KOUKOULAS
  • Publication number: 20130066291
    Abstract: A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 14, 2013
    Applicant: International Paper Company
    Inventors: ZHENG TAN, Damaris Lorenzoni, Gopal Goyal, Sen Yang
  • Patent number: 8361571
    Abstract: A composition is provided, which comprises a water-soluble salt of a divalent metal; a complexing agent having an affinity for the divalent metal; and an optical brightening agent. Methods of using the composition, and recording sheets which include the composition, are also disclosed.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: January 29, 2013
    Assignee: International Paper Company
    Inventors: Zheng Tan, Sen Yang, Jingxiu Wan, Benny J. Skaggs, Benjamin T. Liguzinski
  • Patent number: 8328983
    Abstract: A method of producing a modified pulp for use in paper or paper web products, the method comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: December 11, 2012
    Assignee: International Paper Company
    Inventors: Zheng Tan, Gopal Goyal, Alexander A Koukoulas
  • Patent number: 8282774
    Abstract: A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: October 9, 2012
    Assignee: International Paper Company
    Inventors: Zheng Tan, Damaris Lorenzoni, Gopal Goyal, Sen Yang
  • Patent number: 8262850
    Abstract: A method for alteration of the morphology of cellulose fibers, particularly softwood fibers, by (a) subjecting the fibers to a metal ion-activated peroxide treatment carried out at a pH of between about 1 and about 9, preferably between 3 and 7, and (b) subjecting the treated fibers to a refining treatment thereby converts SW fibers to HW-like fibers in many respects. The metal ion-activated peroxide treatment has been noted to act on pulp cellulose and hemi-cellulose, causing oxidation and oxidative degradation of cellulose fibers. The chemical treatment of the pulp, taken alone, is not sufficient to attain the desired modification of the morphology of the fibers, however, subsequent refining or like mechanical treatment of the chemically-treated fibers to achieve a given degree of refinement of the fibers requires dramatically less refining energy to achieve a desired end point of refinement and to impart other desirable properties to the pulp.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: September 11, 2012
    Assignee: International Paper Company
    Inventors: Zheng Tan, Xuan Nguyen, Karen L. Maurer
  • Patent number: 8182650
    Abstract: A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: May 22, 2012
    Assignee: International Paper Company
    Inventors: Zheng Tan, Gopal Goyal, Alexander A. Koukoulas
  • Publication number: 20120028975
    Abstract: The present invention relates to substituted triazolopyridines and analogs thereof, the use of the compounds as phosphodiesterase 10 (PDE10) inhibitors for the treatment of PDE10-modulated disorders, to pharmaceutical compositions comprising the compounds.
    Type: Application
    Filed: April 5, 2010
    Publication date: February 2, 2012
    Inventors: Ginny D. Ho, Elizabeth M. Smith, Eugenia Y. Kiselgof, Kallol Basu, Zheng Tan, Brian McKittrick, Deen Tulshian
  • Publication number: 20110287275
    Abstract: A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.
    Type: Application
    Filed: August 8, 2011
    Publication date: November 24, 2011
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: ZHENG TAN, DAMARIS LORENZONI, GOPAL GOYAL, SEN YANG