Patents by Inventor Ahmed S. Abuelyaman

Ahmed S. Abuelyaman 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: 20120295227
    Abstract: Dental compositions and disulfide monomers described. The disulfide monomer comprises a disulfide backbone group wherein each of the sulfur atoms are bonded to a group terminating with an ethylenically unsaturated norbornyl group; and at least one other monomer comprising at least two ethylenically unsaturated groups.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 22, 2012
    Inventors: Christopher N. Bowman, Hee Young Park, Christopher J. Kloxin, Ahmed S. Abuelyaman, Joel D. Oxman, Yizhong Wang
  • Publication number: 20120295228
    Abstract: Dental compositions and disulfide monomers are described. The disulfide monomer comprise a disulfide backbone group wherein each of the sulfur atoms are bonded to an ethylenically unsaturated group via a divalent linking group and the linking group comprises at least one heteroatom; and at least one other monomer ethylenically unsaturated monomer.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 22, 2012
    Inventors: Ahmed S. Abuelyaman, Joel D. Oxman, Yizhong Wang, Christopher N. Bowman, Hee Young Park, Christopher J. Kloxin
  • Publication number: 20120208965
    Abstract: Addition-fragmentation agents of the formula are disclosed: wherein R1, R2 and R3 are each independently Z-Q-, a (hetero)alkyl group or a (hetero)aryl group with the proviso that at least one of R1, R2 and R3 is Zm-Q-, Q is a linking group have a valence of m+1; Z is an ethylenically unsaturated polymerizable group, m is 1 to 6; each X1 is independently —O— or —NR4—, where R4 is H or C1-C4 alkyl, and n is 0 or 1.
    Type: Application
    Filed: June 27, 2011
    Publication date: August 16, 2012
    Inventors: Guy D. Joly, Larry R. Krepski, Ann R. Fornof, Serkan Yurt, Babu N. Gaddam, Ahmed S. Abuelyaman
  • Patent number: 8084515
    Abstract: Carbosilane-containing polymers (including oligomers) having the following structural features: greater than one repeat unit; at least four Si-arylene bonds; at least one (meth)acrylate moiety, Si—H moiety, or both; no Si—O bonds; preferably at least four silicon atoms; wherein two silicon atoms are separated by one arylene group in each repeat unit.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: December 27, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Ahmed S. Abuelyaman, Todd D. Jones, Babu N. Gaddam, Sumita B. Mitra, Naimul Karim, Adrian S. Eckert, Peter Bissinger
  • Patent number: 8076389
    Abstract: An adhesive composition including an etchant for a hard tissue surface, at least one multifunctional crosslinkable (meth)acrylate monomer with a functionality greater than 4, and water. The adhesive composition is a water-in-oil emulsion.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: December 13, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Prabhakara S. Rao, Steven M. Aasen, Ahmed S. Abuelyaman, Sumita B. Mitra, Bradley D. Craig, Brian A. Shukla, David J. Plaut, Victoria A. Russell
  • Patent number: 8029286
    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: September 19, 2008
    Date of Patent: October 4, 2011
    Assignee: 3M Innovative Properties Company
    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: 7888400
    Abstract: The invention features dental compositions comprising at least one hybrid monomer that comprises a cyclic allylic sulfide moiety attached to a (meth)acryloyl moiety. These two functional moieties are typically joined either directly to each via a chemical bond or through some chemical structure or spacer molecule. The composition may optionally contain additional polymerizable compounds, such as ethylenically unsaturated compounds, that are typically used in dental compositions.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: February 15, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Ahmed S. Abuelyaman, Sumita B. Mitra, Kevin M. Lewandowski, David J. Plaut
  • Publication number: 20110003266
    Abstract: Compositions, particularly for forming dental products, having a hardenable self-supporting structure with sufficient malleability to be subsequently customized into a second shape and then hardened, and methods.
    Type: Application
    Filed: September 8, 2010
    Publication date: January 6, 2011
    Inventors: Naimul Karim, Todd D. Jones, Kevin M. Lewandowski, Duane D. Fansler, James M. Nelson, Marcelino Salviejo-Rivas, Babu N. Gaddam, Ahmed S. Abuelyaman, Sumita B. Mitra
  • Patent number: 7816423
    Abstract: Compositions, particularly for forming dental products, having a hardenable self-supporting structure with sufficient malleability to be subsequently customized into a second shape and then hardened, and methods.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: October 19, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Naimul Karim, Todd D. Jones, Kevin M. Lewandowski, Duane D. Fansler, James M. Nelson, Marcelino Salviejo-Rivas, Babu N. Gaddam, Ahmed S. Abuelyaman, Sumita B. Mitra
  • Patent number: 7699605
    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: October 9, 2008
    Date of Patent: April 20, 2010
    Assignees: 3M Espe AG, 3M Innovative Properties Company
    Inventors: Steven M. Aasen, Ahmed S. Abuelyaman, David K. Cinader, Jr., Hendrik M. Grupp, Miriam Hansen, Thomas Klettke, Guenther Lechner, Kevin M. Lewandowski, Thomas Luchterhandt, Sumita B. Mitra, Prabhakara S. Rao, Victoria A. Russell, Michael S. Wendland
  • Publication number: 20100090157
    Abstract: An adhesive composition including an etchant for a hard tissue surface, at least one multifunctional crosslinkable (meth)acrylate monomer with a functionality greater than 4, and water. The adhesive composition is a water-in-oil emulsion.
    Type: Application
    Filed: December 17, 2007
    Publication date: April 15, 2010
    Inventors: Prabhakara S. Rao, Steven M. Aasen, Ahmed S. Abuelyaman, Sumita B. Mitra, Bradley D. Craig, Brian A. Shukla, David J. Plaut, Victoria A. Russell
  • Patent number: 7674850
    Abstract: Compositions, particularly for forming dental products, having a hardenable self-supporting structure with sufficient malleability to be subsequently customized into a second shape and then hardened, and methods.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: March 9, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Naimul Karim, Todd D. Jones, Kevin M. Lewandowski, Duane D. Fansler, James M. Nelson, Marcelino Salviejo-Rivas, Babu N. Gaddam, Ahmed S. Abuelyaman, Sumita B. Mitra
  • Publication number: 20100021869
    Abstract: Di-, tri-, and/or tetra-(meth)acryloyl-containing materials and compositions are provided. Such materials and compositions can preferably be hardened, without undue shrinkage, to provide hardened materials and/or compositions with properties useful, for example, in dental applications. In one aspect, the present invention provides a compound of the formula (Formula I) wherein: each X independently represents an oxygen atom (O) or a nitrogen atom (N); Y and A each independently represent an organic group, with the proviso that Y does not represent —NHCH2CH2— if (i) p=O and R1 represents —C(O)C(CH3)?CH2, and/or (ii) q=0 and R2 represents —C(O)C(CH3)?CH2; m=1 to 5; n=0 to 5; p and q are independently 0 or 1; and R1 and R2 each independently represent H, —C(O)CH?CH2, or —C(O)C(CH3)?CH2.
    Type: Application
    Filed: December 12, 2007
    Publication date: January 28, 2010
    Inventors: Ahmed S. Abuelyaman, 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
  • Patent number: 7576144
    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: Grant
    Filed: July 13, 2005
    Date of Patent: August 18, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Ahmed S. Abuelyaman, Babu N. Gaddam, Sumita B. Mitra, Brian N. Holmes, Adrian S. Eckert, Peter Bissinger
  • Publication number: 20090118389
    Abstract: The present invention features a hardenable dental composition that contains: (1) at least one cyclic allylic compound having at least one sulfur atom in the ring, and (2) at least one at least one ethylenically unsaturated compound, such as a substituted (meth)acryloyl compound. The compositions also typically comprise an initiator system, preferably a photoinitator system containing at least 0.08 wt-% of one or more photosensitizers.
    Type: Application
    Filed: May 9, 2006
    Publication date: May 7, 2009
    Inventors: Ahmed S. Abuelyaman, Sumita B. Mitra, Kevin M. Lewandowski, David J. Plaut, Todd D. Jones
  • Publication number: 20090075239
    Abstract: The present invention is directed to compositions containing one or more polymerizable bisphosphonic acids and optionally one or more additional polymerizable components.
    Type: Application
    Filed: November 21, 2008
    Publication date: March 19, 2009
    Inventor: Ahmed S. Abuelyaman
  • Patent number: 7495054
    Abstract: The invention features compositions comprising at least one monomer that comprises a cyclic dithiane moiety attached to a (meth)acryloyl moiety. The composition may optionally contain additional polymerizable compounds, such as ethylenically unsaturated compounds, that are typically used in dental compositions.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: February 24, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Ahmed S. Abuelyaman, David J. Plaut, Babu N. Gaddam
  • Publication number: 20090032989
    Abstract: Compositions, particularly for forming dental products, having a hardenable self-supporting structure with sufficient malleability to be subsequently customized into a second shape and then hardened, and methods.
    Type: Application
    Filed: October 13, 2008
    Publication date: February 5, 2009
    Inventors: Naimul Karim, Todd D. Jones, Kevin M. Lewandowski, Duane D. Fansler, James M. Nelson, Marcelino Salviejo-Rivas, Babu N. Gaddam, Ahmed S. Abuelyaman, Sumita B. Mitra
  • Publication number: 20090035728
    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: October 9, 2008
    Publication date: February 5, 2009
    Inventors: Steven M. Aasen, Ahmed S. Abuelyaman, David K. Cinader, JR., Hendrik M. Grupp, Miriam Hansen, Thomas Klettke, Guenther Lechner, Kevin M. Lewandowski, Thomas Luchterhandt, Sumita B. Mitra, Prabhakara S. Rao, Victoria A. Russell, Michael S. Wendland