Patents by Inventor Tushar Kshirsagar

Tushar 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: 8846710
    Abstract: A method of preferentially inducing IFN-? biosynthesis in an animal comprising administering certain imidazo[4,5-c] ring compounds with a hydroxymethyl or hydroxyethyl substituent at the 2-position or pharmaceutical compositions containing the compounds, intermediates, methods of making, and methods of using these compounds a immunomodulators for treatment of diseases including viral and neoplastic diseases comprising preferentially inducing IFN-? biosynthesis in an animal are disclosed.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: September 30, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Bryon A. Merrill, Scott E. Langer, Kyle J. Lindstrom, Sarah C. Slania, Gregory J. Marszalek, Joshua R. Wurst, Karl J. Manske, Shri Niwas, Gregory D. Lundquist, Jr., Philip D. Heppner, George W. Griesgraber, Michael E. Danielson
  • Patent number: 8677843
    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: Grant
    Filed: February 10, 2009
    Date of Patent: March 25, 2014
    Assignee: 3M Innovative Properties Company
    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: 8673932
    Abstract: Imidazo-containing compounds (e.g., imidazoquinolines, imidazonaphthyridines, and imidazopyridines) with an oxime substituent at the 1-position, pharmaceutical compositions containing 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: August 12, 2004
    Date of Patent: March 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, David T. Amos, Joseph F. Dellaria, Jr., Philip D. Heppner, Scott E. Langer, Bernhard M. Zimmermann
  • Patent number: 8658666
    Abstract: Imidazoquinolines and imidazonaphthyridines with a substituent containing a functional group, e.g., an amide, sulfonamide, urea, or heterocyclyl group, at the 6, 7, 8, or 9-position, pharmaceutical compositions containing the compounds, intermediates, methods of making 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: February 10, 2006
    Date of Patent: February 25, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Michael J. Rice, Chad A. Haraldson, John F. Gerster, Joshua R. Wurst, Philip D. Heppner, Bryon A. Merrill, Tushar A. Kshirsagar
  • Publication number: 20140011253
    Abstract: A concentration agent for capture of microorganisms, including diatomaceous earth bearing, on at least a portion of its surface, a surface treatment comprising a surface modifier comprising titanium dioxide, fine-nanoscale gold or platinum, or a combination thereof, and methods for making the concentration agent.
    Type: Application
    Filed: September 11, 2013
    Publication date: January 9, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Manjiri T. Kshirsagar, Tushar A. Kshirsagar, Thomas E. Wood
  • Patent number: 8598192
    Abstract: Imidazo ring compounds (e.g., imidazoquinolines, 6,7,8,9-tetrahydroimidazoquinolines, imidazonaphthyridines, and imidazopyridines) with a hydroxylamine substituent at the 2-position, pharmaceutical compositions containing 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 12, 2004
    Date of Patent: December 3, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Gregory D. Lundquist, Jr., David T. Amos, Joseph F. Dellaria, Jr., Bernhard M. Zimmermann, Philip D. Heppner
  • Publication number: 20130273594
    Abstract: Sterilization indicators that include a unique porous carrier, such indicators useful for testing the effectiveness of a sterilization procedure by measuring the activity of an active enzyme whose activity is correlated with the survival of microorganisms.
    Type: Application
    Filed: December 20, 2011
    Publication date: October 17, 2013
    Applicant: 3Innovative Properties Company
    Inventors: Francois Ahimou, G. Marco Bommarito, Tushar A. Kshirsagar
  • Publication number: 20130273593
    Abstract: Sterilization indicators that include a neutralizer, such indicators useful for testing the effectiveness of a sterilization procedure by measuring the activity of an active enzyme whose activity is correlated with the survival of microorganisms.
    Type: Application
    Filed: December 20, 2011
    Publication date: October 17, 2013
    Applicant: 3M Innovative Properties Company
    Inventors: William E. Foltz, Francois Ahimou, G. Marco Bommarito, Robert A. Asmus, Louis C. Haddad, Tushar A. Kshirsagar
  • Patent number: 8546383
    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: May 25, 2012
    Date of Patent: October 1, 2013
    Assignee: 3M Innovative Properties 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: 8546100
    Abstract: A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration agent that comprises diatomaceous earth bearing, on at least a portion of its surface, a surface treatment comprising a surface modifier comprising titanium dioxide, fine-nanoscale gold or platinum, or a combination thereof; (b) providing a sample comprising at least one microorganism strain; and (c) contacting the concentration agent with the sample such that at least a portion of the at least one microorganism strain is bound to or captured by the concentration agent.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: October 1, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Manjiri T. Kshirsagar, Tushar A. Kshirsagar, Thomas E. Wood
  • Patent number: 8476292
    Abstract: Amide and carbamate derivatives N-{2-[4-amino-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-1-yl]-1,1-dimethylethyl}methanesulfonamide, pharmaceutical compositions containing these compounds, methods of making the compounds, and methods of use of these compounds in modulating the immune system, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: July 2, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Shri Niwas, Bryon A. Merrill
  • Patent number: 8378102
    Abstract: Thiazolo[4,5-c]ring compounds, (e.g. thiazolopyridine, thiazoloquinoline, 6,7,8,9-tetrahydrothiazoloquinoline, thiazolonaphthyridine, and 6,7,8,9-tetrahydrothiazolonaphthyridine 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 8, 2006
    Date of Patent: February 19, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Gregory D. Lundquist, Jr., Tushar A. Kshirsagar, Philip D. Heppner
  • Patent number: 8377957
    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 29, 2011
    Date of Patent: February 19, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Philip D. Heppner, Scott E. Langer
  • Patent number: 8372416
    Abstract: A process for limiting the growth of microorganisms comprises (a) providing an antimicrobial agent comprising fine-nanoscale gold on a support medium comprising nanoparticulate titania, the fine-nanoscale gold having been deposited on the support medium by physical vapor deposition; and (b) contacting at least one microorganism with the antimicrobial agent.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: February 12, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Manjiri T. Kshirsagar, Tushar A. Kshirsagar, Thomas E. Wood
  • Patent number: 8350034
    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: August 2, 2011
    Date of Patent: January 8, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: George W. Griesgraber, Tushar A. Kshirsagar, Sarah J. Slania, Michael E. Danielson
  • Patent number: 8343993
    Abstract: Certain imidazonaphthyridines 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: January 1, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Scott E. Langer, Shri Niwas, George W. Griesgraber, Philip D. Heppner, Kyle J. Lindstrom
  • Patent number: 8329721
    Abstract: 1H-Imidazo[4,5-c]naphthyridin-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: March 14, 2007
    Date of Patent: December 11, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Scott E. Langer
  • Publication number: 20120232057
    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: May 25, 2012
    Publication date: September 13, 2012
    Inventors: George W. GRIESGRABER, Tushar A. KSHIRSAGAR, Azim A. CELEBI, Sarah J. SLANIA, Michael E. DANIELSON, Michael J. RICE, Joshua R. WURST
  • Patent number: 8188111
    Abstract: Amide and carbamate derivatives of N-[4-(4-amino-1H-imidazo[4,5-c]quinolin-1-yl)butyl]methanesulfonamides with an ethyl, methyl, or n-propyl substituent at the 2-position, pharmaceutical compositions containing these compounds, methods of making the compounds, and methods of use of these compounds in modulating the immune system, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: May 29, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Tushar A. Kshirsagar, Shri Niwas, Bryon A. Merrill
  • Publication number: 20120121651
    Abstract: Pyrazolopyridin-4-amines, pyrazoloquinolin-4-amines, pyrazolonaphthyridin-4-amines, 6,7,8,9-tetrahydropyrazoloquinolin-4-amines, and prodrugs thereof, pharmaceutical compositions containing the compounds, intermediates, methods of making, and methods of use of these compounds as immunomodulators, for inducing or inhibiting cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases, are disclosed.
    Type: Application
    Filed: January 26, 2012
    Publication date: May 17, 2012
    Inventors: David S. Hays, Michael E. Danielson, John F. Gerster, Shri Niwas, Ryan B. Prince, Tushar A. Kshirsagar, Philip D. Heppner, William H. Moser, Joan T. Moseman, Matthew R. Radmer, Maureen A. Kavanagh, Sarah A. Strong, Jason D. Bonk