Patents by Inventor Afshin Falsafi

Afshin Falsafi 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: 20100015578
    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: Application
    Filed: December 12, 2007
    Publication date: January 21, 2010
    Inventors: Afshin Falsafi, Joel D. Oxman, Tiffany T. Ton, Joan V. Brennan, David K. Cinader, JR., Bhaskar V. Velamakanni, Sumita B. Mitra
  • Patent number: 7632098
    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: Grant
    Filed: August 11, 2004
    Date of Patent: December 15, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Afshin Falsafi, Steven M. Aasen, Ahmed S. Abuelyaman, David K. Cinader, Bradley D. Craig, Reinhold Hecht, Thomas Luchterhandt, Sumita B. Mitra, Joel D. Oxman, Prabhakara S. Rao, Brian A. Shukla, Markus Watermann
  • Publication number: 20090304809
    Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes a caseinate. 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 caseinate and a hardenable resin or a water-dispersible, polymeric film former are also provided.
    Type: Application
    Filed: November 7, 2005
    Publication date: December 10, 2009
    Inventors: Richard P. Rusin, Sumita B. Mitra, Kevin M. Cummings, Paul A. Burgio, Afshin Falsafi
  • Patent number: 7541393
    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: Grant
    Filed: December 14, 2006
    Date of Patent: June 2, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Sumita B. Mitra, Afshin Falsafi
  • Publication number: 20090011388
    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: September 19, 2008
    Publication date: January 8, 2009
    Inventors: Bradley D. Craig, Steven M. Aasen, Ahmed S. Abuelyaman, David K. Cinader, Afshin Falsafi, Reinhold Hecht, Thomas Luchterhandt, Sumita B. Mitra, Prabhakara S. Rao, Brian A. Shukla, Markus Watermann
  • Patent number: 7465758
    Abstract: Polymerizable compositions and methods are provided that include an ethylenically unsaturated compound and an arylsulfinate salt. The polymerizable compositions are useful as hardenable dental compositions.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: December 16, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Afshin Falsafi, Rajdeep S. Kalgutkar, Joel D. Oxman
  • Publication number: 20080299519
    Abstract: Methods and compositions including an aqueous liquid that includes an acid-sensitive dye are disclosed for use in dental and orthodontic procedures. The aqueous liquid can be useful for providing a visible color change to indicate contact with acidic materials including, for example, etching compositions, self-etching adhesives, and self-adhesive compositions.
    Type: Application
    Filed: July 7, 2005
    Publication date: December 4, 2008
    Inventors: Bradley D. Craig, Robert Lee, Ahmed S. Abuelyaman, Afshin Falsafi, Steven M. Aasen, Joel D. Oxman
  • Publication number: 20080014560
    Abstract: Polymerizable compositions and methods are provided that include an ethylenically unsaturated compound and an arylsulfinate salt. The polymerizable compositions are useful as hardenable dental compositions.
    Type: Application
    Filed: July 16, 2007
    Publication date: January 17, 2008
    Inventors: Afshin Falsafi, Rajdeep Kalgutkar, Joel Oxman
  • Patent number: 7250452
    Abstract: Polymerizable compositions and methods are provided that include an ethylenically unsaturated compound and an arylsulfinate salt. The polymerizable compositions are useful as hardenable dental compositions.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: July 31, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Afshin Falsafi, Rajdeep S. Kalgutkar, Joel D. Oxman
  • 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
  • Patent number: 7173074
    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: Grant
    Filed: April 12, 2002
    Date of Patent: February 6, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Sumita B. Mitra, Afshin Falsafi
  • Publication number: 20060144733
    Abstract: A container assembly has a material storage container defining a sealed chamber therein. A quantity of moisture-sensitive material is disposed in the chamber. The moisture-sensitive material has a desired range of moisture content. A hydrated humidity control substance is also disposed within the chamber, and the humidity control substance is in humidity-transferable communication with the chamber. The humidity control substance regulates a relative humidity within the chamber in order to maintain a moisture content of the moisture-sensitive material within the desired range of moisture content.
    Type: Application
    Filed: December 22, 2005
    Publication date: July 6, 2006
    Inventors: Dong Wu, Brian Holmes, Afshin Falsafi
  • 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
  • Patent number: 6982288
    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: Grant
    Filed: April 12, 2002
    Date of Patent: January 3, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Sumita B. Mitra, Afshin Falsafi
  • 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: 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: 20050070627
    Abstract: Polymerizable compositions and methods are provided that include an ethylenically unsaturated compound and an arylsulfinate salt. The polymerizable compositions are useful as hardenable dental compositions.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 31, 2005
    Inventors: Afshin Falsafi, Rajdeep Kalgutkar, Joel Oxman
  • Patent number: 6818682
    Abstract: The inventive dental composition comprises (a) a part A comprising at least one polyacid and at least one polymerizable component; and (b) a part B comprising water, wherein the composition further comprises an oxidizing agent, a reducing agent, and reactive fillers in at least one of part A or part B and wherein at least one of the polyacid, oxidizing agent, and reducing agent is in a disperse phase. The dental composition can be used in many dental applications and is particularly suited for use as a cement.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: November 16, 2004
    Inventors: Afshin Falsafi, Mark S. Konings, Joel D. Oxman, Richard P. Rusin, Edward J. Winters
  • Publication number: 20030195273
    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: April 12, 2002
    Publication date: October 16, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Sumita B. Mitra, Afshin Falsafi
  • Publication number: 20030166740
    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: April 12, 2002
    Publication date: September 4, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Sumita B. Mitra, Afshin Falsafi