Patents by Inventor Girish Nilkanth Deshpande

Girish Nilkanth Deshpande 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).

  • Oxygen scavenging molecules, articles containing same, and methods of their use
    Patent number: 8431721
    Abstract: The invention relates to compounds of the structure of formula I and II: where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol represents a single or a double bond; and R1, R2 and R3 are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: April 30, 2013
    Assignee: Constar International, Inc.
    Inventors: Girish Nilkanth Deshpande, Paul David Weipert, Michael W. Ensley
  • OXYGEN SCAVENGING MOLECULES, ARTICLES CONTAINING SAME, AND METHODS OF THEIR USE
    Publication number: 20110251395
    Abstract: The invention relates to compounds of the structure of formula I and II: where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol represents a single or a double bond; and R1, R2 and R3 are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.
    Type: Application
    Filed: June 20, 2011
    Publication date: October 13, 2011
    Inventors: Girish Nilkanth Deshpande, Paul David Weipert, Michael W. Ensley
  • Oxygen scavenging molecules, articles containing same, and methods of their use
    Patent number: 7994245
    Abstract: The invention relates to compounds of the structure of formula I and II: where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol — represents a single or a double bond; and R1, R2 and R3 are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: August 9, 2011
    Assignee: Constar International L.L.C.
    Inventors: Girish Nilkanth Deshpande, Paul David Weipert, Michael W. Ensley
  • Oxygen Scavenging Compositions And Packaging Comprising Said Compositions
    Publication number: 20100154361
    Abstract: The instant invention concerns a composition comprising a base polymer, at least one compound of the formula E-(L-E)x wherein: E is and L is a linking group; and at least one transition metal in a positive oxidation state. The invention also concerns packages containing walls comprising such compositions, methods of forming such packages, and methods of packaging an oxygen-sensitive item within such a package.
    Type: Application
    Filed: March 9, 2010
    Publication date: June 24, 2010
    Applicant: CONSTAR INTERNATIONAL, INC.
    Inventors: Girish Nilkanth Deshpande, Venkat Govindarajan, John M. Rost, Alan Silverman
  • Oxygen scavenging compositions and packaging comprising said compositions
    Patent number: 7691290
    Abstract: The instant invention concerns a composition comprising a base polymer, at least one compound of the formula E-(L-E)x wherein: E is and L is a linking group; and at least one transition metal in a positive oxidation state. The invention also concerns packages containing walls comprising such compositions, methods of forming such packages, and methods of packaging an oxygen-sensitive item within such a package.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: April 6, 2010
    Assignee: Constar International Inc.
    Inventors: Girish Nilkanth Deshpande, Venkat Govindarajan, John Rost, Alan Silverman
  • Oxygen Scavenging Compositions and Packaging Comprising Said Compositions
    Publication number: 20090278087
    Abstract: The instant invention concerns a composition comprising a base polymer, at least one compound of the formula E-(L-E)x wherein: E is formula (I) or formula (II) and L is a linking group; and at least one transition metal in a positive oxidation state. The invention also concerns packages containing walls comprising such compositions, methods of forming such packages, and methods of packaging an oxygen-sensitive item within such a package.
    Type: Application
    Filed: February 15, 2006
    Publication date: November 12, 2009
    Applicant: Constar International, Inc
    Inventors: Girish Nilkanth Deshpande, Venkat Govindarajan, John M. Rost, Alan Silverman
  • Oxygen Scavenging Molecules, Articles Containing Same, And Methods Of Their Use
    Publication number: 20080277622
    Abstract: The invention relates to compounds of the structure of formula I and II: where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol — represents a single or a double bond; and R1, R2 and R3 are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.
    Type: Application
    Filed: May 9, 2008
    Publication date: November 13, 2008
    Inventors: Girish Nilkanth Deshpande, Paul David Weipert, Michael W. Ensley