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).

  • Patent number: 8968709
    Abstract: 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: Grant
    Filed: July 10, 2008
    Date of Patent: March 3, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Jie Yang, Bhaskar V. Velamakanni, Sumita B Mitra, Alphonsus V. Pocius, John J. Stofko, Jr., Jeremy M. Yarwood
  • Patent number: 8647608
    Abstract: 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: Grant
    Filed: October 31, 2012
    Date of Patent: February 11, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Jie Yang, Bhaskar V. Velamakanni, Sumita B. Mitra, Alphonsus V. Pocius, John J. Stofko, Jr., Jeremy M. Yarwood
  • Patent number: 8420069
    Abstract: 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: Grant
    Filed: August 25, 2009
    Date of Patent: April 16, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: John J. Stofko, Jr., Jeremy M. Yarwood
  • Patent number: 8329674
    Abstract: 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: Grant
    Filed: July 10, 2008
    Date of Patent: December 11, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Jie Yang, Bhaskar V. Velamakanni, Sumita B. Mitra, Alphonsus V. Pocius, John J. Stofko, Jr., Jeremy M. Yarwood
  • Publication number: 20110250164
    Abstract: 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: Application
    Filed: December 3, 2009
    Publication date: October 13, 2011
    Inventor: John J. Stofko, Jr.
  • Publication number: 20110171158
    Abstract: 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: Application
    Filed: August 25, 2009
    Publication date: July 14, 2011
    Inventors: John J. Stofko, JR., Jeremy M. Yarwood
  • Publication number: 20100150847
    Abstract: 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: Application
    Filed: July 10, 2008
    Publication date: June 17, 2010
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jie Yang, Bhaskar V. Velamakanni, Sumita B. Mitra, Alphonsus V. Pocius, John J. Stofko, JR., Jeremy M. Yarwood
  • Publication number: 20100130445
    Abstract: Film forming dental compositions are provided comprising a compound of the formula or a pharmaceutically acceptable salt thereof, and a binder.
    Type: Application
    Filed: July 10, 2008
    Publication date: May 27, 2010
    Inventors: Jie Yang, Bhaskar V. Velamakanni, Simita B. Mitra, Alphonsus V. Pocius, John J. Stofko, JR., Jeremy M. Yarwood
  • Patent number: 7585919
    Abstract: 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: Grant
    Filed: September 26, 2006
    Date of Patent: September 8, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Alphonsus V. Pocius, Jeremy M. Yarwood, Rudolf J. Dams, John J. Stofko, Jr.
  • Patent number: 7531595
    Abstract: 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: Grant
    Filed: March 8, 2006
    Date of Patent: May 12, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Timothy D. Filiatrault, Kelly S. Anderson, Babu N. Gaddam, Eugene G. Joseph, Ying-Yuh Lu, John J. Stofko, Jr.
  • Patent number: 5565518
    Abstract: 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: Grant
    Filed: November 2, 1995
    Date of Patent: October 15, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John J. Stofko, Jr., Jeffery C.Y. Chang
  • Patent number: 5472789
    Abstract: 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: Grant
    Filed: November 22, 1994
    Date of Patent: December 5, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mohammad Iqbal, Alan G. Miller, John J. Stofko, Jr.
  • Patent number: 5464900
    Abstract: 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: Grant
    Filed: October 19, 1993
    Date of Patent: November 7, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John J. Stofko, Jr., Jeffery C. Chang
  • Patent number: 5411787
    Abstract: 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: Grant
    Filed: October 19, 1993
    Date of Patent: May 2, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Subodh K. Kulkarni, Jeffrey C. Chang, Robert M. Henry, Robert E. Martinson, John J. Stofko, Jr.
  • Patent number: 5389723
    Abstract: 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: Grant
    Filed: October 24, 1990
    Date of Patent: February 14, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mohammad Iqbal, Alan G. Miller, John J. Stofko, Jr.
  • Patent number: 5352736
    Abstract: 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: Grant
    Filed: April 16, 1993
    Date of Patent: October 4, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John J. Stofko, Jr., Mohammad Iqbal
  • Patent number: 5314785
    Abstract: 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: Grant
    Filed: March 19, 1993
    Date of Patent: May 24, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Dennis E. Vogel, John J. Stofko, Jr.
  • Patent number: 5241006
    Abstract: 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: Grant
    Filed: October 24, 1990
    Date of Patent: August 31, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mohammad Iqbal, Terrance P. Smith, John J. Stofko, Jr.
  • Patent number: 5225316
    Abstract: 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: Grant
    Filed: January 6, 1992
    Date of Patent: July 6, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Dennis E. Vogel, John J. Stofko, Jr.
  • Patent number: 5219928
    Abstract: 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: Grant
    Filed: October 24, 1990
    Date of Patent: June 15, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John J. Stofko, Jr., Mohammad Iqbal