Patents by Inventor Tushar A. Kshirsagar

Tushar A. Kshirsagar 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: 8178677
    Abstract: Certain imidazoquinolines with a hydroxymethyl or hydroxyethyl substituent at the 2-position, pharmaceutical compositions containing the compounds, intermediates, methods of making and methods of use of these compounds as immunomodulators, for preferentially inducing IFN-? biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: May 15, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Bryon A. Merrill, Scott E. Langer, Kyle J. Lindstrom, Sarah J. Slania, Gregory J. Marszalek, Karl J. Manske, Philip D. Heppner, Gregory D. Lundquist, Jr.
  • Patent number: 8158794
    Abstract: Certain imidazoquinolines with a hydroxymethyl or hydroxyethyl substituent at the 2-position, and an aryl or heteroaryl substituent at the 7-position, pharmaceutical compositions containing the compounds, intermediates, methods of making and methods of use of these compounds as immunomodulators, for preferentially inducing IFN-? biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: April 17, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Bryon A. Merrill, Shri Niwas, Gregory D. Lundquist, Jr., Philip D. Heppner, Michael E. Danielson
  • Patent number: 8143270
    Abstract: 1H-Imidazo ring systems (e.g., imidazopyridines, imidazoquinolines, imidazonaphthyridines, 6,7,8,9-tetrahydro imidazoquinolines and imidazonaphthyridines) with an amino substituent at the 2-position, pharmaceutical compositions containing these compounds, methods of making the compounds, intermediates, and methods of use of these compounds as immunomodulators, for modulating cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: March 27, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Scott E. Langer, Shri Niwas, Philip D. Heppner, David T. Amos
  • Publication number: 20120071463
    Abstract: 1H-Imidazo[4,5-c]quinolin-4-amines with a hydroxy, alkoxy, hydroxyalkoxy, or alkoxyalkoxy substituent at the 2-position, pharmaceutical compositions containing these compounds, methods of making the compounds, intermediates, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Application
    Filed: November 29, 2011
    Publication date: March 22, 2012
    Inventors: Tushar A. Kshirsagar, Philip D. Heppner, Scott E. Langer
  • Patent number: 8138173
    Abstract: Pyrazolo[3,4-c]quinolines, pyrazolo[4,5-c]naphthyridines, and analogs thereof, eg., 6,7,8,9-tetrahydro pyrazolo[3,4-c]quinolines, and, pharmaceutical compositions containing the compounds, intermediates, methods of making these compounds, and methods of use of these compounds as immunomodulators, for inhibiting cytokine biosynthesis in animals and in the therapeutic or prophylactic treatment of diseases by inhibiting cytokine biosynthesis are disclosed.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 20, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Bryon A. Merrill, Michael E. Danielson, David S. Hays, David T. Amos, Philip D. Heppner, Tushar A. Kshirsagar, Gregory D. Lundquist, Jr., William H. Moser
  • Patent number: 8088788
    Abstract: [1,2]Imidazo[4,5-c] ring compounds (e.g., imidazo[4,5-c]quinolines, imidazo[4,5-c]naphthyridines, and imidazo[4,5-c]pyridines) substituted with a fused ring containing an oxygen and/or nitrogen atom attached at the 1- and/or 2-position, pharmaceutical compositions containing the compounds, intermediates, methods of making the compounds, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: January 3, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Karl J. Manske, Larry R. Krepski, Joan T. Moseman, George W. Griesgraber, Sarah Johannessen Slania, Scott E. Langer, Philip D. Heppner
  • Patent number: 8088790
    Abstract: 1H-Imidazo[4,5-c]quinolin-4-amines with a hydroxy, alkoxy, hydroxyalkoxy, or alkoxyalkoxy substituent at the 2-position, pharmaceutical compositions containing these compounds, methods of making the compounds, intermediates, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: January 3, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Philip D. Heppner, Scott E. Langer
  • Publication number: 20110293654
    Abstract: Substituted fused [1,2]imidazo[4,5-c] ring compounds (e.g., imidazo[4,5-c]quinolines, 6,7,8,9-tetrahydroimidazo[4,5-c]quinolines, imidazo[4,5-c]naphthyridines, and 6,7,8,9-tetrahydroimidazo[4,5-c]naphthyridines) with a —CH(—R1)— group in the fused ring at the 1-position of the imidazo ring, wherein R1 includes a functional group, for example, an amide, sulfonamide, urea, carbamate, ester, ketone, ether, a thio analog of the forgoing, sulfone, oxime, or hydroxylamine, pharmaceutical compositions containing the compounds, intermediates, methods of making the compounds, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Application
    Filed: August 2, 2011
    Publication date: December 1, 2011
    Inventors: George W. Griesgraber, Tushar A. Kshirsagar, Sarah J. Slania, Michael E. Danielson
  • Patent number: 8034938
    Abstract: Substituted fused [1,2]imidazo[4,5-c] ring compounds (e.g., imidazo[4,5-c]quinolines, 6,7,8,9-tetrahydroimidazo[4,5-c]quinolines, imidazo[4,5-c]naphthyridines, and 6,7,8,9-tetrahydroimidazo[4,5-c]naphthyridines) with a —CH(—R1)— group in the fused ring at the 1-position of the imidazo ring, wherein R1 includes a functional group, for example, an amide, sulfonamide, urea, carbamate, ester, ketone, ether, a thio analog of the forgoing, sulfone, oxime, or hydroxylamine, pharmaceutical compositions containing the compounds, intermediates, methods of making the compounds, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: October 11, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: George W. Griesgraber, Tushar A. Kshirsagar, Sarah J. Slania, Michael E. Danielson
  • Patent number: 8026366
    Abstract: Thiazoloquinoline and thiazolonaphthyridine compounds having an aryloxy or arylalkyleneoxy substituent at the 6-, 7-, 8-, or 9-position, pharmaceutical compositions containing the compounds, intermediates, and methods of making and methods of use of these compounds as immunomodulators, for modulating cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: September 27, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Ryan B. Prince, Michael J. Rice, Joshua R. Wurst, Bryon A. Merrill, Tushar A. Kshirsagar, Philip D. Heppner
  • Patent number: 8017779
    Abstract: Imidazoquinoline and imidazonaphthyridine compounds having a nitrogen-containing heterocyclyl substituent at the 5-, 6-, 7-, or 8-position, pharmaceutical compositions containing the compounds, intermediates, and methods of making and methods of use of these compounds as immunomodulators, for modulating cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: September 13, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Bryon A. Merrill, Chad A. Haraldson, Tushar A. Kshirsagar, Shri Niwas
  • Publication number: 20110207725
    Abstract: Fused [1,2]imidazo[4,5-c] ring compounds (e.g., imidazo[4,5-c]quinolines, 6,7,8,9-tetrahydroimidazo[4,5-c]quinolines, imidazo[4,5-c]naphthyridines, and 6,7,8,9-tetrahydroimidazo[4,5-c]naphthyridines) with a —CH(—X1—R1)-group in the fused ring at the 1-position of the imidazo ring, pharmaceutical compositions containing the compounds, intermediates, methods of making the compounds, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Application
    Filed: April 20, 2011
    Publication date: August 25, 2011
    Inventors: George W. Griesgraber, Tushar A. Kshirsagar, Azim A. Celebi, Sara J. Slania, Michael E. Danielson, Michael J. Rice, Joshua R. Wurst
  • Publication number: 20110183398
    Abstract: The invention relates to compositions, methods, devices, and kits for non-specifically isolating bacterial cells. The compositions comprise a solid support which has a surface comprising a combination of a carbohydrate and a biotin-binding protein, wherein the protein is covalently bonded to the carbohydrate, and wherein the protein is linked to the solid support via the carbohydrate; and at least one of 1) a plurality of bacterial cells non-specifically bound to the combination of the carbohydrate and the protein or 2) an amphiphilic glycoside of a steroid or triterpene. The methods, devices, and kits include at least one of these compositions.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 28, 2011
    Applicant: 3M INNOVATIVE PROPERTIES
    Inventors: Sridhar V. Dasaratha, G.M. Bommarito, Tushar A. Kshirsagar
  • Publication number: 20110179887
    Abstract: A sample acquisition device includes a body comprising a plurality of sample acquisition regions defined by at least a first wall and a second wall oriented nonparallel to the first wall. In some embodiments, the body defines a plurality of apertures that define a plurality of sample acquisition regions. In other embodiments, the walls extend from the body, and the sample acquisition regions are defined between the walls. The sample acquisition regions may be configured in some embodiments such that a user may acquire a sample by rotating the body in a first direction relative to a sample source and may release the sample by rotating the body in a second direction that is substantially opposite to the first direction. When rotated in the first direction, at least one of the first or second walls defines a surface that is inclined into a sample acquisition region.
    Type: Application
    Filed: February 12, 2009
    Publication date: July 28, 2011
    Inventors: Paul J. Cobian, G. Marco Bommarito, Bernard A. Gonzalez, Tushar A. Kshirsagar, Patrick A. Mach, Tera M. Nordby, Gustavo H. Castro, Joseph J. Stoffel, Murat Okcay, Scott A. Burton
  • Patent number: 7968563
    Abstract: Imidazo[4,5-c] ring compounds, (e.g. imidazo[4,5-c]pyridines, imidazo[4,5-c]quinolines, 6,7,8,9-tetrahydro imidazo[4,5-c]quinolines, imidazo[4,5-c]naphthyridine, and 6,7,8,9-tetrahydro imidazo[4,5-c]naphthyridine compounds) having an oxime or hydroxylamine substituent at the 2-position, pharmaceutical compositions containing the compounds, intermediates, and methods of making and methods of use of these compounds as immunomodulators, for modulating cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: June 28, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Gregory D. Lundquist, Jr., Joseph F. Dellaria, Matthew R. Radmer, Bernhard M. Zimmermann
  • Publication number: 20110146419
    Abstract: A sample acquisition device includes a capillary array configured to draw in a sample and retain the sample by capillary action. The capillary array may be coupled to an elongated member, such as a stem or a hollow tube, which defines a longitudinal axis extending in a first direction. In some embodiments, the capillary array defines a major sample acquisition surface that extends in a second direction different than the first direction. A ratio of the major sample acquisition surface area to maximum volume retained by the capillary array may be selected to minimize physical binding between the capillary array and sample. In some embodiments, the device may include a feedback mechanism to indicate the relative pressure applied to a sample source with the sample acquisition device. In addition, in some embodiments, the sample acquisition device may include a suction source to help draw the sample into the capillary array.
    Type: Application
    Filed: February 10, 2009
    Publication date: June 23, 2011
    Inventors: Bernard A. Gonzalez, G. Marco Bommarito, Paul J. Cobian, Tera M. Nordby, Tushar A. Kshirsagar, Scott A. Burton, Joseph J. Stoffel, Patrick A. Mach, Gustavo H. Castro
  • Patent number: 7943609
    Abstract: Fused [1,2]imidazo[4,5-c] ring compounds (e.g., imidazo[4,5-c]quinolines, 6,7,8,9-tetrahydroimidazo[4,5-c]quinolines, imidazo[4,5-c]naphthyridines, and 6,7,8,9-tetrahydroimidazo[4,5-c]naphthyridines) with a —CH(—X1—R1)-group in the fused ring at the 1-position of the imidazo ring, pharmaceutical compositions containing the compounds, intermediates, methods of making the compounds, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: May 17, 2011
    Assignee: 3M Innovative Proprerties Company
    Inventors: George W. Griesgraber, Tushar A. Kshirsagar, Azim A. Celebi, Sarah J. Slania, Michael E. Danielson, Michael J. Rice, Joshua R. Wurst
  • Patent number: 7915281
    Abstract: Imidazo ring compounds, (e.g. imidazo[4,5-c]pyridine, imidazo[4,5-c]quinoline, 6,7,8,9-tetrahydro imidazo[4,5-c]quinoline, and imidazo[4,5-c]naphthyridine compounds) having an isoxazole, dihydroisoxazole, or oxadiazole substituent at the 1-position, pharmaceutical compositions containing the compounds, intermediates, and methods of making and methods of use of these compounds as immunomodulators, for modulating cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: March 29, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: William H. Moser, Joan T. Moseman, Tushar A. Kshirsagar, Philip D. Heppner
  • Patent number: 7897609
    Abstract: Imidazonaphthyridine ring systems substituted with an aryl substituent, pharmaceutical compositions containing the compounds, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: March 1, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Shri Niwas, Bryon A. Merrill, Philip D. Heppner, Tushar A. Kshirsagar, Gregory D. Lundquist, Jr., David T. Amos, Kyle J. Lindstrom
  • Patent number: 7897597
    Abstract: Imidazoquinoline compounds with an aryloxy or arylalkyleneoxy or hydroxy substituent at the 6, 7, 8, or 9-position, pharmaceutical compositions containing the compounds, intermediates, and methods of use of these compounds as immunomodulators, for modulating cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: March 1, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Kyle J. Lindstrom, Hugues M. H. Martin, Bryon A. Merrill, Michael J. Rice, Joshua R. Wurst, Chad A. Haraldson, Tushar A. Kshirsagar, Philip D. Heppner, Shri Niwas, George W. Griesgraber, Matthew R. Radmer