Patents by Inventor Sumita Mitra

Sumita Mitra 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).

  • Publication number: 20080045626
    Abstract: Carbosilane-containing polymers (including oligomers) having the following structural features: greater than one repeat unit; at least 4 Si-arylene bonds; at least 1 (meth)acrylate moiety, Si—H moiety, or both; no Si—O bonds; preferably at least 4 silicon atoms; wherein 2 silicon atoms are separated by one arylene group in each repeat unit.
    Type: Application
    Filed: July 13, 2005
    Publication date: February 21, 2008
    Inventors: Kevin Lewandowski, Ahmed Abuelyaman, Todd Jones, Babu Gaddam, Sumita Mitra, Naimul Karim, Andrian Eckert, Peter Bissinger
  • Publication number: 20070276059
    Abstract: Carbosilane monomers that include the following structural features: at least two Si-arylene bonds; at least one (meth)acrylate moiety; no Si—O bonds; and preferably at least two silicon atoms.
    Type: Application
    Filed: July 13, 2005
    Publication date: November 29, 2007
    Inventors: Kevin Lewandowski, Ahmed Abuelyaman, Babu Gaddam, Sumita Mitra, Brian Holmes, Adrian Eckert, Peter Bissinger
  • Publication number: 20070207094
    Abstract: Thermally responsive compositions that include a thermally responsive viscosity modifier, a polymerizable component, and water are provided. The compositions, which optionally may be hardened, are useful for application to a surface of a body.
    Type: Application
    Filed: May 7, 2007
    Publication date: September 6, 2007
    Inventors: Joel Oxman, Mai Nguyen, Sumita Mitra, Hoa Bui, Jingwen Ma, Jie Liu, Mahfuza Ali
  • Publication number: 20070088096
    Abstract: The present invention provides a hardenable (i.e., curable by polymerization, crosslinking, ionic, or other chemical reaction) composition that includes polymerizable urea or thiourea compounds that function as reductants (i.e., reducing agents) in redox polymerization reactions.
    Type: Application
    Filed: December 14, 2006
    Publication date: April 19, 2007
    Inventors: Sumita Mitra, Afshin Falsafi
  • Publication number: 20060205838
    Abstract: The present application provides dental compositions, methods of making, and methods of using dental compositions that include an antimicrobial lipid component and a hardenable component.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 14, 2006
    Inventors: Bhaskar Velamakanni, Sumita Mitra, Danli Wang, Matthew Scholz, Steven Aasen
  • Publication number: 20060052232
    Abstract: Polymerizable compositions that include: (a) a cationically active functional group; (b) an initiation system capable of initiating cationic polymerization of the cationically active functional group; and (c) a filler composition that includes various radiopacifying fillers in an amount sufficient to render the polymerizable composition radiopaque. Components (a), (b), and (c) are selected such that the polymerizable composition polymerizes to form a polymerized composition having a Barcol hardness, measured using a GYZJ-935 meter, of at least 10 within 30 minutes following initiation of the cationically active functional group at a reaction temperature of 25° C.
    Type: Application
    Filed: November 16, 2005
    Publication date: March 9, 2006
    Inventors: Kathyrn Bretscher, Richard Rusin, Bradley Craig, Sumita Mitra, Joel Oxmann, Janis Gust, Cheryl Hayne, James Westberg, Matthew Trom, Brant Kolb, Dwight Jacobs, David Kaisaki, James Baker
  • Publication number: 20060030637
    Abstract: A hardenable medical composition (preferably, dental composition) that includes an ionic redox polymerization system and at least one secondary ionic salt that includes a cation selected from the group consisting of a Group I ion, a Group II ion, an ammonium ion of the formula NR4+ wherein each R is H or a (C1-C4)alkyl group, and mixtures thereof.
    Type: Application
    Filed: October 6, 2005
    Publication date: February 9, 2006
    Inventors: Sumita Mitra, Afshin Falsafi
  • Publication number: 20050252415
    Abstract: Acid-reactive dental fillers, and methods of making and using such fillers, are disclosed. The acid-reactive dental fillers include a trivalent metal, oxygen, fluorine, an alkaline earth metal, and, optionally, silicon. The acid-reactive dental fillers are preferably nanostructured, for example, in the form of nanoparticles.
    Type: Application
    Filed: May 17, 2004
    Publication date: November 17, 2005
    Inventors: Kenton Budd, Jason Thalacker, Sumita Mitra, Brant Kolb, Lani Kangas
  • Publication number: 20050203207
    Abstract: The invention relates to dental compositions, such as dental or orthodontic adhesives, dental or orthodontic cements, or impression materials, and/or kits that contain a bitterness inhibitor. The dental compositions and kits are useful for blocking the perception of bitterness caused by a bitter tastant.
    Type: Application
    Filed: January 21, 2005
    Publication date: September 15, 2005
    Inventors: Thomas Klettke, Thomas Luchterhandt, Sumita Mitra, Armineh Khachatoorian, Josef Silberg
  • Publication number: 20050175966
    Abstract: The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.
    Type: Application
    Filed: August 11, 2004
    Publication date: August 11, 2005
    Inventors: Afshin Falsafi, Steven Aasen, Ahmed Abuelyaman, David Cinader, Bradley Craig, Reinhold Hecht, Thomas Luchterhandt, Sumita Mitra, Joel Oxman, Prabhakara Rao, Brian Shukla, Markus Watermann
  • Publication number: 20050175965
    Abstract: The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.
    Type: Application
    Filed: August 11, 2004
    Publication date: August 11, 2005
    Inventors: Bradley Craig, Steven Aasen, Ahmed Abuelyaman, David Cinader, Afshin Falsafi, Reinhold Hecht, Thomas Luchterhandt, Sumita Mitra, Prabhakara Rao, Brian Shukla, Markus Watermann
  • Publication number: 20050176844
    Abstract: The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.
    Type: Application
    Filed: August 11, 2004
    Publication date: August 11, 2005
    Inventors: Steven Aasen, Ahmed Abuelyaman, David Cinader, Hendrik Grupp, Miriam Hansen, Thomas Klettke, Guenther Lechner, Kevin Lewandowski, Thomas Luchterhandt, Sumita Mitra, Prabhakara Rao, Victoria Russell, Michael Wendland