Patents by Inventor John J. Stofko, Jr.
John J. Stofko, Jr. 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).
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Patent number: 8968709Abstract: Dental compositions are provided comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof: wherein n is an integer from about 2 to about 5.Type: GrantFiled: July 10, 2008Date of Patent: March 3, 2015Assignee: 3M Innovative Properties CompanyInventors: Jie Yang, Bhaskar V. Velamakanni, Sumita B Mitra, Alphonsus V. Pocius, John J. Stofko, Jr., Jeremy M. Yarwood
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Patent number: 8647608Abstract: Dental compositions are provided comprising a compound of Formula I or a pharmaceutically acceptable salt thereof: wherein n is an integer from about 2 to about 5.Type: GrantFiled: October 31, 2012Date of Patent: February 11, 2014Assignee: 3M Innovative Properties CompanyInventors: Jie Yang, Bhaskar V. Velamakanni, Sumita B. Mitra, Alphonsus V. Pocius, John J. Stofko, Jr., Jeremy M. Yarwood
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Patent number: 8420069Abstract: A polymeric material, methods of making the polymeric material, articles that include the polymeric material, and compositions that contain the polymeric material are provided. The polymeric material has a plurality of different pendant groups that include a first pendant group containing a —COOH group or a salt thereof, a second pendant group containing a poly(alkylene oxide) group, a third pendant group containing a silicon-containing group, and a fourth pendant group containing a quaternary amino group. The polymeric material can be used, for example, to provide coatings that can be antifouling, antimicrobial, or both.Type: GrantFiled: August 25, 2009Date of Patent: April 16, 2013Assignee: 3M Innovative Properties CompanyInventors: John J. Stofko, Jr., Jeremy M. Yarwood
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Patent number: 8329674Abstract: Film forming dental compositions comprising a compound of formula (I) or a pharmaceutically acceptable salt thereof, and a binder. The film forming dental compositions can include an amino sugar, a derivative of an amino sugar, or a pharmaceutically acceptable salt thereof, and can be useful in inhibiting biofilm formation in an oral cavity.Type: GrantFiled: July 10, 2008Date of Patent: December 11, 2012Assignee: 3M Innovative Properties CompanyInventors: Jie Yang, Bhaskar V. Velamakanni, Sumita B. Mitra, Alphonsus V. Pocius, John J. Stofko, Jr., Jeremy M. Yarwood
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Publication number: 20110250164Abstract: A composition including the reaction product of at least a vinylamine-vinyl alcohol copolymer; an epoxyalkane; and a fluorocarbon that includes a reactive portion capable of reacting with the vinylamine-vinyl alcohol copolymer. Articles including coatings of such compositions, methods of preparing antimicrobial water-repellant surfaces and methods of preparing an antimicrobial water-repellant composition are also included.Type: ApplicationFiled: December 3, 2009Publication date: October 13, 2011Inventor: John J. Stofko, Jr.
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Publication number: 20110171158Abstract: A polymeric material, methods of making the polymeric material, articles that include the polymeric material, and compositions that contain the polymeric material are provided. The polymeric material has a plurality of different pendant groups that include a first pendant group containing a —COOH group or a salt thereof, a second pendant group containing a poly(alkylene oxide) group, a third pendant group containing a silicon-containing group, and a fourth pendant group containing a quaternary amino group. The polymeric material can be used, for example, to provide coatings that can be antifouling, antimicrobial, or both.Type: ApplicationFiled: August 25, 2009Publication date: July 14, 2011Inventors: John J. Stofko, JR., Jeremy M. Yarwood
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Publication number: 20100150847Abstract: Dental compositions are provided comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof: wherein n is an integer from about 2 to about 5.Type: ApplicationFiled: July 10, 2008Publication date: June 17, 2010Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Jie Yang, Bhaskar V. Velamakanni, Sumita B. Mitra, Alphonsus V. Pocius, John J. Stofko, JR., Jeremy M. Yarwood
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Publication number: 20100130445Abstract: Film forming dental compositions are provided comprising a compound of the formula or a pharmaceutically acceptable salt thereof, and a binder.Type: ApplicationFiled: July 10, 2008Publication date: May 27, 2010Inventors: Jie Yang, Bhaskar V. Velamakanni, Simita B. Mitra, Alphonsus V. Pocius, John J. Stofko, JR., Jeremy M. Yarwood
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Patent number: 7585919Abstract: The present invention provides a curable composition for use in retarding the formation of biofilms. The curable composition comprises a polymer derived from ethylenically unsaturated units having pendent long-chain aliphatic groups; ethylenically unsaturated units having pendent poly(oxyalkylene) groups; and ethylenically unsaturated units having pendent substrate-reactive groups; and a crosslinking agent.Type: GrantFiled: September 26, 2006Date of Patent: September 8, 2009Assignee: 3M Innovative Properties CompanyInventors: Alphonsus V. Pocius, Jeremy M. Yarwood, Rudolf J. Dams, John J. Stofko, Jr.
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Patent number: 7531595Abstract: An adhesive composition comprising an emulsion polymer which comprises a (meth)acrylate copolymer and silica nanoparticles is described. The addition of the nanoparticles results in a significant increase in the overlap shear properties.Type: GrantFiled: March 8, 2006Date of Patent: May 12, 2009Assignee: 3M Innovative Properties CompanyInventors: Kevin M. Lewandowski, Timothy D. Filiatrault, Kelly S. Anderson, Babu N. Gaddam, Eugene G. Joseph, Ying-Yuh Lu, John J. Stofko, Jr.
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Patent number: 5565518Abstract: Water soluble organosiloxane compounds are provided comprising an oligomer incorporating an addition product of at least two reactants wherein one reactant is at least one 3-glycidoxypropylalkoxy siloxane and the other reactant is at least one secondary hydroxyalkyl amine, optionally, an alkoxysilane different than 3-glycidoxypropylalkoxysilane; optionally, a primary or secondary amine different than the secondary hydroxyalkyl amine; and water.Type: GrantFiled: November 2, 1995Date of Patent: October 15, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: John J. Stofko, Jr., Jeffery C.Y. Chang
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Patent number: 5472789Abstract: Semi-interpenetrating polymeric networks comprising a blend of hydrophilic and hydrophobic polymers wherein at least one of the polymeric components is crosslinked after blending to form a continuous network throughout the bulk of the material, and through which the uncrosslinked polymeric components are intertwined in such a way as to form a macroscopically homogeneous composition. The integrity of such networks persists even after absorption of solvent. These materials can be used to form durable, non-tacky, ink-absorbent, transparent coatings for graphical materials.Type: GrantFiled: November 22, 1994Date of Patent: December 5, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mohammad Iqbal, Alan G. Miller, John J. Stofko, Jr.
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Patent number: 5464900Abstract: Water soluble organosiloxane compounds are provided comprising an oligomer incorporating an addition product of at least two reactants wherein one reactant is at least one 3-glycidoxypropylalkoxy siloxane and the other reactant is at least one secondary hydroxyalkyl amine, optionally, an alkoxysilane different than 3-glycidoxypropylalkoxysilane; optionally, a primary or secondary amine different than the secondary hydroxyalkyl amine; and water.Type: GrantFiled: October 19, 1993Date of Patent: November 7, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: John J. Stofko, Jr., Jeffery C. Chang
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Patent number: 5411787Abstract: A water-based transparent image-receptive layer suitable for imaging in a thermal printer, and in electrophotographic or xerographic copiers, comprising a mixture of from about 5 parts to about 30 parts of at least one amino based silane coupling agent having the general formula: ##STR1## wherein Q is selected from the group consisting of primary, secondary and tertiary amino groups; R is selected from aliphatic and aromatic groups; R.sub.1 is selected from the group consisting of alkyl and aryl groups, and n is 1 or 2; from about 60 parts to about 80 parts of basic colloidal particles; from about 10 to about 29.9 parts of a water-dispersible polymeric binder, and from about 0.1 part to about 5 parts of an antiblocking agent.Type: GrantFiled: October 19, 1993Date of Patent: May 2, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Subodh K. Kulkarni, Jeffrey C. Chang, Robert M. Henry, Robert E. Martinson, John J. Stofko, Jr.
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Patent number: 5389723Abstract: Semi-interpenetrating polymeric networks comprising a blend of hydrophilic and hydrophobic polymers wherein at least one of the polymeric components is crosslinked after blending to form a continuous network throughout the bulk of the material, and through which the uncrosslinked polymeric components are intertwined in such a way as to form a macroscopically homogeneous composition. The integrity of such networks persists even after absorption of solvent. These materials can be used to form durable, non-tacky, ink-absorbent, transparent coatings for graphical materials.Type: GrantFiled: October 24, 1990Date of Patent: February 14, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mohammad Iqbal, Alan G. Miller, John J. Stofko, Jr.
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Patent number: 5352736Abstract: A liquid-absorbent composition comprising (a) a polymeric matrix component comprising crosslinked silanol moieties, and (b) a liquid-absorbent component comprising a water-absorbent polymer, preferably a water-soluble polymer. This composition is capable of forming liquid-absorbent, semi-interpenetrating polymeric networks, which are capable of absorbing significant quantities of those liquids that are solvents for the uncrosslinked portion of the network without loss of physical integrity and without leaching or other forms of phase separation. The compositions of this invention provides polymeric matrices which result in transparent coatings capable of providing improved combinations of ink absorption and durability, while at the same time retaining transparency and being amenable to the types of processing commonly used in producing transparent graphical materials.Type: GrantFiled: April 16, 1993Date of Patent: October 4, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: John J. Stofko, Jr., Mohammad Iqbal
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Patent number: 5314785Abstract: Photosensitive compositions containing a photoinitiator which generates an acid upon exposure to light and a polymer containing pendant alkoxy alkyl ester groups. Also disclosed are imageable articles containing the photosensitive compositions of the present invention coated on a substrate as well as processes for forming an imaged article.Type: GrantFiled: March 19, 1993Date of Patent: May 24, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Dennis E. Vogel, John J. Stofko, Jr.
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Patent number: 5241006Abstract: A composition comprising a blend of (a) a polymeric matrix component comprising crosslinkable polymers made from 80 to 99 parts by weight of at least one .alpha.,.beta.-ethylenically unsaturated monomer and from 1 to 20 parts by weight of at least one chelating compound, (b) a liquid-absorbent component comprising a water-absorbent, preferably water-soluble, polymer, and (c) a multivalent metal ion as a crosslinking agent. This composition is capable of forming liquid-absorbent, semi-interpenetrating networks. The composition of this invention can provide polymeric matrices which, when coated on a transparent backing, result in transparent coatings capable of providing improved combinations of ink absorption and durability, while at the same time retaining transparency and being amenable to the types of processing commonly used in producing transparent graphical materials.Type: GrantFiled: October 24, 1990Date of Patent: August 31, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mohammad Iqbal, Terrance P. Smith, John J. Stofko, Jr.
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Patent number: 5225316Abstract: Photosensitive compositions containing a photoinitiator which generates an acid upon exposure to light and a polymer containing pendant alkoxy alkyl ester groups. Also disclosed are imageable articles containing the photosensitive compositions of the present invention coated on a substrate as well as processes for forming an imaged article.Type: GrantFiled: January 6, 1992Date of Patent: July 6, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Dennis E. Vogel, John J. Stofko, Jr.
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Patent number: 5219928Abstract: A liquid-absorbent composition comprising (a) a polymeric matrix component comprising crosslinked silanol moieties, and (b) a liquid-absorbent component comprising a water-absorbent polymer, preferably a water-soluble polymer. This composition is capable of forming liquid-absorbent, semi-interpenetrating polymeric networks, which are capable of absorbing significant quantities of those liquids that are solvents for the uncrosslinked portion of the network without loss of physical integrity and without leaching or other forms of phase separation. The compositions of this invention provides polymeric matrices which result in transparent coatings capable of providing improved combinations of ink absorption and durability, while at the same time retaining transparency and being amenable to the types of processing commonly used in producing transparent graphical materials.Type: GrantFiled: October 24, 1990Date of Patent: June 15, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: John J. Stofko, Jr., Mohammad Iqbal