Resumes
Resumes
Steven Aasen Phones & Addresses
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2609 Clearview Ave, Saint Paul, MN 55112 (612) 715-0690
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New Brighton, MN
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2631 Brighton Ave NE, Minneapolis, MN 55418
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St Anthony, MN
Publications
Us Patents
Method For Adhering To Hard Tissue
View pageUS Patent:
6482871, Nov 19, 2002
Filed:
Jun 5, 1995
Appl. No.:
08/464022
Inventors:
Steven M. Aasen - Lakeland MN
Joel D. Oxman - St. Louis Park MN
Sumita B. Mitra - West St. Paul MN
Jon W. Fundingsland - Maplewood MN
Joel D. Oxman - St. Louis Park MN
Sumita B. Mitra - West St. Paul MN
Jon W. Fundingsland - Maplewood MN
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
A61K 608
US Classification:
523116, 523118, 522103, 522104, 522 96, 522 90, 522 88, 522 48, 522 83, 522908, 428522
Abstract:
The invention provides a pretreatment method and primer that is applied directly to the hard tissue. The invention has particular utility for adhering to or coating sclerotic dentin and cervical enamel or for adhering to or coating hard tissue in a high humidity environment. The primer enables formation of extremely strong bonds to dentin. The method comprises the steps of: (a) applying to the hard tissue adhesively effective amounts of an acid and a water-dispersible film former comprising a polymer and (b) hardening the film former. Primer compositions are provided for use in this method, comprising a mixture of an acid and a film former comprising a polymer prior to hardening, the mixture being in the form of a film atop the hard tissue.
Dental Resin Cements Having Improved Handling Properties
View pageUS Patent:
6506816, Jan 14, 2003
Filed:
Jul 17, 1997
Appl. No.:
08/896549
Inventors:
Paula D. Ario - Woodbury MN
Steven M. Aasen - Woodbury MN
Brian N. Holmes - St. Paul MN
Steven M. Aasen - Woodbury MN
Brian N. Holmes - St. Paul MN
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
A61K 6087
US Classification:
523116, 4332281, 433215, 523115, 523118, 524556, 524559, 524533, 5263231
Abstract:
Dental resin cement materials having unique handling properties are provided that comprise a) filler, b) polymerizable resin, and c) a polymeric handling modifier that is dispersed in the polymerizable resin at 25Â C. and that has a molecular weight of between about 500 and 100,000. Components a) b) and c) are present in an amount effective to achieve a Viscosity vs Shear Rate Curve that fits a power law model of F(x)=A x. The correlation value of the material to this curve is greater than 0. 85 for both the increasing and decreasing shear rate curves, and the value of B is less than about -0. 01. Resin cements are also provided that comprise acid functionality and water, but which do not comprise an acid reactive filler. Such cements may be self etching, thereby avoiding the need to carry out a separate acid etch step.
Dental Resin Cements Having Improved Handling Properties
View pageUS Patent:
6939900, Sep 6, 2005
Filed:
Dec 10, 2002
Appl. No.:
10/315505
Inventors:
Paula D. Ario - Woodbury MN, US
Steven M. Aasen - Woodbury MN, US
Brian N. Holmes - St. Paul MN, US
Steven M. Aasen - Woodbury MN, US
Brian N. Holmes - St. Paul MN, US
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
A61K006/087
US Classification:
523116, 433215, 4332281, 523115, 523118, 524533, 524556, 524559, 5263231
Abstract:
Dental resin cement materials having unique handling properties are provided that comprise a) filler, b) polymerizable resin, and c) a polymeric handling modifier that is dispersed in the polymerizable resin at 25 C. and that has a molecular weight of between about 500 and 100,000. Components a) b) and c) are present in an amount effective to achieve a Viscosity vs Shear Rate Curve that fits a power law model of F(x)=Ax. The correlation value of the material to this curve is greater than 0. 85 for both the increasing and decreasing shear rate curves, and the value of B is less than about −0. 01. Resin cements are also provided that comprise acid functionality and water, but which do not comprise an acid reactive filler. Such cements may be self etching, thereby avoiding the need to carry out a separate acid etch step.
Self-Etching Dental Compositions And Methods
View pageUS Patent:
7449499, Nov 11, 2008
Filed:
Aug 11, 2004
Appl. No.:
10/916168
Inventors:
Bradley D. Craig - Cottage Grove MN, US
Steven M Aasen - Woodbury MN, US
Ahmed S. Abuelyaman - Woodbury MN, US
Reinhold Hecht - Kaufering, DE
Thomas Luchterhandt - Greifenberg, DE
Prabhakara S. Rao - Maplewood MN, US
Brian A. Shukla - St. Paul MN, US
Markus Watermann - Inning am Ammersee, DE
Steven M Aasen - Woodbury MN, US
Ahmed S. Abuelyaman - Woodbury MN, US
Reinhold Hecht - Kaufering, DE
Thomas Luchterhandt - Greifenberg, DE
Prabhakara S. Rao - Maplewood MN, US
Brian A. Shukla - St. Paul MN, US
Markus Watermann - Inning am Ammersee, DE
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
A61K 6/083
US Classification:
523118, 523116, 4332281
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.
Self-Etching Emulsion Dental Compositions And Methods
View pageUS Patent:
7452924, Nov 18, 2008
Filed:
Aug 11, 2004
Appl. No.:
10/916169
Inventors:
Steven M. Aasen - Woodbury MN, US
Ahmed S. Abuelyaman - Woodbury MN, US
Hendrik M. Grupp - Landsberg/Lech, DE
Miriam Hansen - München, DE
Thomas Klettke - Diessen, DE
Guenther Lechner - Woerthsee, DE
Kevin M. Lewandowski - Inver Grove Heights MN, US
Thomas Luchterhandt - Greifenberg, DE
Sumita B. Mitra - West St. Paul MN, US
Prabhakara S. Rao - Maplewood MN, US
Victoria A. Russell - Brooklyn Park MN, US
Michael S. Wendland - North St. Paul MN, US
Ahmed S. Abuelyaman - Woodbury MN, US
Hendrik M. Grupp - Landsberg/Lech, DE
Miriam Hansen - München, DE
Thomas Klettke - Diessen, DE
Guenther Lechner - Woerthsee, DE
Kevin M. Lewandowski - Inver Grove Heights MN, US
Thomas Luchterhandt - Greifenberg, DE
Sumita B. Mitra - West St. Paul MN, US
Prabhakara S. Rao - Maplewood MN, US
Victoria A. Russell - Brooklyn Park MN, US
Michael S. Wendland - North St. Paul MN, US
Assignee:
3M Espe AG - Seefeld
3M Innovative Properties Company - St. Paul MN
3M Innovative Properties Company - St. Paul MN
International Classification:
A61K 6/083
C08F 2/32
A61C 5/00
C08F 2/32
A61C 5/00
US Classification:
523116, 4332281, 524801
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.
Self-Adhesive Dental Compositions And Methods
View pageUS Patent:
7632098, Dec 15, 2009
Filed:
Aug 11, 2004
Appl. No.:
10/916240
Inventors:
Afshin Falsafi - Woodbury MN, US
Steven M. Aasen - Woodbury MN, US
Ahmed S. Abuelyaman - Woodbury MN, US
David K. Cinader - Yorba Linda CA, US
Bradley D. Craig - Cottage Grove MN, US
Reinhold Hecht - Kaufering, DE
Thomas Luchterhandt - Greifenberg, DE
Sumita B. Mitra - West St. Paul MN, US
Joel D. Oxman - Minneapolis MN, US
Prabhakara S. Rao - Maplewood MN, US
Brian A. Shukla - St. Paul MN, US
Markus Watermann - Inning am Ammersee, DE
Steven M. Aasen - Woodbury MN, US
Ahmed S. Abuelyaman - Woodbury MN, US
David K. Cinader - Yorba Linda CA, US
Bradley D. Craig - Cottage Grove MN, US
Reinhold Hecht - Kaufering, DE
Thomas Luchterhandt - Greifenberg, DE
Sumita B. Mitra - West St. Paul MN, US
Joel D. Oxman - Minneapolis MN, US
Prabhakara S. Rao - Maplewood MN, US
Brian A. Shukla - St. Paul MN, US
Markus Watermann - Inning am Ammersee, DE
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
A61C 5/00
A61C 3/00
A61C 3/00
US Classification:
433215, 433 24, 433226
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.
Self-Etching Emulsion Dental Compositions And Methods
View pageUS Patent:
7699605, Apr 20, 2010
Filed:
Oct 9, 2008
Appl. No.:
12/248338
Inventors:
Steven M. Aasen - Woodbury MN, US
Ahmed S. Abuelyaman - Woodbury MN, US
Hendrik M. Grupp - Landsberg/Lech, DE
Miriam Hansen - München, DE
Thomas Klettke - Diessen, DE
Guenther Lechner - Woerthsee, DE
Kevin M. Lewandowski - Inver Grove Heights MN, US
Thomas Luchterhandt - Greifenberg, DE
Sumita B. Mitra - West St. Paul MN, US
Prabhakara S. Rao - Maplewood MN, US
Victoria A. Russell - Brooklyn Park MN, US
Michael S. Wendland - North St. Paul MN, US
Ahmed S. Abuelyaman - Woodbury MN, US
Hendrik M. Grupp - Landsberg/Lech, DE
Miriam Hansen - München, DE
Thomas Klettke - Diessen, DE
Guenther Lechner - Woerthsee, DE
Kevin M. Lewandowski - Inver Grove Heights MN, US
Thomas Luchterhandt - Greifenberg, DE
Sumita B. Mitra - West St. Paul MN, US
Prabhakara S. Rao - Maplewood MN, US
Victoria A. Russell - Brooklyn Park MN, US
Michael S. Wendland - North St. Paul MN, US
Assignee:
3M Espe AG - Seefeld
3M Innovative Properties Company - St. Paul MN
3M Innovative Properties Company - St. Paul MN
International Classification:
A61C 3/00
A61K 6/083
A61K 6/083
US Classification:
433 9, 4332281, 523118
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.
Self-Etching Dental Compositions And Methods
View pageUS Patent:
8029286, Oct 4, 2011
Filed:
Sep 19, 2008
Appl. No.:
12/233854
Inventors:
Bradley D. Craig - Cottage Grove MN, US
Steven M. Aasen - Woodbury MN, US
Ahmed S. Abuelyaman - Woodsbury MN, US
David K. Cinader - Yorba Linda CA, US
Afshin Falsafi - Woodbury MN, US
Reinhold Hecht - Kaufering, DE
Thomas Luchterhandt - Greifenberg, DE
Sumita B. Mitra - West St. Paul MN, US
Prabhakara S. Rao - Maplewood MN, US
Brian A. Shukla - St. Paul MN, US
Markus Watermann - Inning am Ammersee, DE
Steven M. Aasen - Woodbury MN, US
Ahmed S. Abuelyaman - Woodsbury MN, US
David K. Cinader - Yorba Linda CA, US
Afshin Falsafi - Woodbury MN, US
Reinhold Hecht - Kaufering, DE
Thomas Luchterhandt - Greifenberg, DE
Sumita B. Mitra - West St. Paul MN, US
Prabhakara S. Rao - Maplewood MN, US
Brian A. Shukla - St. Paul MN, US
Markus Watermann - Inning am Ammersee, DE
Assignee:
3M Innovative Properties Company - Saint Paul MN
International Classification:
A61C 3/00
A61C 5/08
A61K 6/083
A61C 5/08
A61K 6/083
US Classification:
4332281, 433 9, 4332171, 4332221, 106 35, 523118
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.