Patents by Inventor Sumita B. Mitra

Sumita B. 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: 20190091108
    Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes a phosphate salt. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment. Dental compositions, and methods of using dental compositions that include a phosphate salt and a hardenable resin or a water-dispersible, polymeric film former are also provided.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Inventors: Richard P. Rusin, Sumita B. Mitra, Kevin M. Cummings
  • Patent number: 10137061
    Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes a phosphate salt. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment. Dental compositions, and methods of using dental compositions that include a phosphate salt and a hardenable resin or a water-dispersible, polymeric film former are also provided.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: November 27, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Richard P. Rusin, Sumita B. Mitra, Kevin M. Cummings
  • Patent number: 9943465
    Abstract: Methods of using a dental composition having a photobleachable dye and an acidic component with a pKa of less than 4.5 are disclosed. The photobleachable dye is selected from the group consisting of aminoanthraquinone dyes, azo dyes, and combinations thereof. The aged color of the dental composition is substantially the same as the color of the dental composition immediately after hardening.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: April 17, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Afshin Falsafi, Joel D. Oxman, Tiffany T. Ton, Joan V. Brennan, David K. Cinader, Jr., Bhaskar V. Velamakanni, Sumita B. Mitra
  • Patent number: 9700684
    Abstract: Some embodiments of a system or method for applying a barrier composition to a targeted skin surface can be used to as a preventative measure to reduce the likelihood of transmission of microbial entities from an external source (e.g., a floor surface or another surface) to the targeted skin surface.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: July 11, 2017
    Assignee: Preventamedics LLC
    Inventors: Aner Vlodaver, Benhoor Soumekh, Smarajit Mitra, Sumita B. Mitra
  • Patent number: 9517186
    Abstract: The present application provides a glass composition comprising 10-50% by weight CaO, at least 15% and less than 50% by weight P2O5, less than 3% by weight Al2O3, less than 10% by weight Li2O, Na2O, and K2O combined, and 0-60% by weight of SrO, MgO, BaO, ZnO, or combinations thereof; dental compositions comprising the glass composition, and methods of making and using such dental compositions.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: December 13, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Richard P. Rusin, Kevin M. Cummings, Sumita B. Mitra, Paul A. Burgio, Tsi-Zong Tzou, David S. Arney
  • Patent number: 9414995
    Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes phosphorus and a divalent cation. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: August 16, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Richard P. Rusin, Sumita B. Mitra, Kevin M. Cummings
  • Publication number: 20160193431
    Abstract: Some embodiments of a system or method for applying a barrier composition to a targeted skin surface can be used to as a preventative measure to reduce the likelihood of transmission of microbial entities from an external source (e.g., a floor surface or another surface) to the targeted skin surface.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Inventors: Aner Vlodaver, Benhoor Soumekh, Smarajit Mitra, Sumita B. Mitra
  • Patent number: 9314601
    Abstract: Some embodiments of a system or method for applying a barrier composition to a targeted skin surface can be used to as a preventative measure to reduce the likelihood of transmission of microbial entities from an external source (e.g., a floor surface or another surface) to the targeted skin surface.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: April 19, 2016
    Assignee: Preventamedics LLC
    Inventors: Aner Vlodaver, Benhoor Soumekh, Smarajit Mitra, Sumita B. Mitra
  • Publication number: 20160095313
    Abstract: The present invention is generally related to a product and process to reduce the microbial contamination on organic matter, such as processed meat, fruits and vegetables, plant parts, inanimate surfaces such as textiles and stainless steel, and in the mouth or on dental products. In particular, the invention is related to a product and process to disinfect surfaces using an antimicrobial composition containing an antimicrobial lipid, an enhancer selected from the group consisting of bacteriocins, antimicrobial enzymes, sugars, sugar alcohols, iron-binding proteins and derivatives thereof, siderophores, and combinations thereof, and optionally a surfactant.
    Type: Application
    Filed: December 15, 2015
    Publication date: April 7, 2016
    Inventors: DANLI WANG, MATTHEW T. SCHOLZ, SUMITA B. MITRA, BHASKAR V. VELAMAKANNI
  • Patent number: 9296767
    Abstract: Calcium phosphate particles are described comprising a surface treatment wherein the surface treatment comprises at least one sugar alcohol. Also described are various oral care compositions comprising surface treated calcium phosphate particles and methods of surface treating calcium phosphate particles.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: March 29, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Richard P. Rusin, Neeraj Sharma, Sumita B. Mitra
  • Publication number: 20160068554
    Abstract: Calcium phosphate particles are described comprising a surface treatment wherein the surface treatment comprises at least one sugar alcohol. Also described are various oral care compositions comprising surface treated calcium phosphate particles and methods of surface treating calcium phosphate particles.
    Type: Application
    Filed: November 17, 2015
    Publication date: March 10, 2016
    Inventors: Richard P. Rusin, Neeraj Sharma, Sumita B. Mitra
  • Patent number: 9271813
    Abstract: A digital painting process provides computer-controlled finishing of dental articles. The process can selectively apply different materials over portions of a dental article in one or more layers to achieve a multi-chromatic finish having a variety of colors, finishes, and surface properties that closely match the appearance and function of human dentition.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: March 1, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Naimul Karim, Sumita B. Mitra
  • Publication number: 20160045401
    Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes phosphorus and a divalent cation. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Inventors: Richard P. Rusin, Sumita B. Mitra, Kevin M. Cummings
  • Patent number: 9237990
    Abstract: Polymerizable isocyanurate monomers and dental compositions are described. A hardenable dental composition is described comprising at least one isocyanurate monomer that is a stable liquid at about 25° C. The isocyanurate monomer comprises at least one divalent linking group bonded to a nitrogen atom of a trivalent isocyanuric acid ring, wherein the divalent linking group comprises a moiety selected from ester, thioester, ether, or thioether, and combinations of such moieties and a terminal ethylenically unsaturated polymerizable group.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: January 19, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Ahmed S. Abuelyaman, Sumita B. Mitra
  • Patent number: 9233054
    Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes phosphorus and a divalent cation. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 12, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Richard P. Rusin, Sumita B. Mitra, Kevin M. Cummings
  • Patent number: 9220673
    Abstract: Calcium phosphate particles are described comprising a surface treatment wherein the surface treatment comprises at least one sugar alcohol. Also described are various oral care compositions comprising surface treated calcium phosphate particles and methods of surface treating calcium phosphate particles.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: December 29, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Richard P. Rusin, Neeraj Sharma, Sumita B. Mitra
  • Publication number: 20150224292
    Abstract: Some embodiments of a system or method for applying a barrier composition to a targeted skin surface can be used to as a preventative measure to reduce the likelihood of transmission of microbial entities from an external source (e.g., a floor surface or another surface) to the targeted skin surface.
    Type: Application
    Filed: April 20, 2015
    Publication date: August 13, 2015
    Inventors: Aner Vlodaver, Benhoor Soumekh, Smarajit Mitra, Sumita B. Mitra
  • Patent number: 9060832
    Abstract: By capturing a highly detailed three-dimensional digital model of dentition, a suitable replacement dental article be fabricated with a combination of digitally-controlled reductive processes such as milling and digitally-controlled additive processes such as digital painting. A dental article so-manufactured can provide an aesthetically pleasing, multi-chromatic appearance that closely matches surrounding dentition.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: June 23, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Naimul Karim, Sumita B. Mitra
  • Patent number: 9050252
    Abstract: Presently described are methods of surface treating inorganic oxide particles, hardenable (e.g. dental) compositions comprising a polymerizable resin composition and surface treated particles, as well as surface treated (e.g. nanocluster) inorganic oxide particles, and silane surface treatment compounds. In one embodiment, the method comprises forming a surface treatment compound by reacting a first functional group of a (meth)acrylate monomer having a molecular weight of at least 350 g/mole with a second functional group of a silane compound wherein the first and second functional group react to form a covalent bond; and combining the surface treatment compound with inorganic oxide particles.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: June 9, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Bradley D. Craig, Ahmed S. Abuelyaman, Sumita B. Mitra
  • Patent number: 9028884
    Abstract: Some embodiments of a system or method for applying a barrier composition to a targeted skin surface can be used to as a preventative measure to reduce the likelihood of transmission of microbial entities from an external source (e.g., a floor surface or another surface) to the targeted skin surface.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: May 12, 2015
    Assignee: Preventamedics LLC
    Inventors: Aner Vlodaver, Benhoor Soumekh, Smarajit Mitra, Sumita B. Mitra