Patents by Inventor John J. Stofko

John J. Stofko 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.
  • Publication number: 20080075960
    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: Application
    Filed: September 26, 2006
    Publication date: March 27, 2008
    Inventors: Alphonsus V. POCIUS, Jeremy M. Yarwood, Rudolf J. Dams, John J. Stofko
  • Patent number: 6730376
    Abstract: A photocurable thermally transferable composition containing a multifunctional monomer that is substantially non-liquid at room temperature and a thermoplastic binder is disclosed. The composition is suitable for use in thermal transfer ribbons. After thermal transfer, the compositions are photocured to provide a durable, weatherable image on a graphic article.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: May 4, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: John J. Stofko, Mark Hendrickson, Michael G. O'Reilly, Hsin Hsin Chou, Richard Severance
  • Publication number: 20020155266
    Abstract: A photocurable thermally transferable composition containing a multifunctional monomer that is substantially non-liquid at room temperature and a thermoplastic binder is disclosed. The composition is suitable for use in thermal transfer ribbons. After thermal transfer, the compositions are photocured to provide a durable, weatherable image on a graphic article.
    Type: Application
    Filed: February 9, 2001
    Publication date: October 24, 2002
    Inventors: John J. Stofko, Mark Hendrickson, Michael G. O'Reilly, Hsin Hsin Chou, Richard Severance
  • Patent number: 6420455
    Abstract: Polymer compositions and articles incorporating them are provided that possess antimicrobial activity, preferably in both the light and the dark. Such compositions include one or more polymers and one or more photosensitizers.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: July 16, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin D. Landgrebe, John J. Stofko, Sheila A. Tesch, John C. Loperfido, David J. Hastings, Thomas J. Packard, Matthew T. Scholz, Linda K. Olson, Kaveh Pournoor, Monserrat R. Lalonde
  • Patent number: 6165239
    Abstract: The present invention relates to stable aqueous colloidal dipersions of sulfopolyureas and self supporting films formed from the dispersions which display good mechanical properties from about room temperature to temperatures exceeding 150.degree. C. The films of the invention, which are formed with no volatile organic compound (VOC) emissions and no post-coating chemical or ionic cross-linking, are not redispersible in water and may be used to form heat resistant abrasive articles.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: December 26, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Steven T. Hedrick, Howard S. Creel, Subramanian Krishnan, John J. Stofko, Wayne K. Larson
  • 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: 5445866
    Abstract: A transparent recording sheet coated with a transparent water-based image-receptive coating composition of (1) from about 5 parts by weight to about 95 parts by weight of an oligomer incorporating at least one addition product having at least two reactants wherein one reactant is 3-glycidoxypropylalkoxysilane and the second reactant is at least one secondary amine; (2) from about 5 parts by weight to 95 parts by weight of a colloidal dispersion; (3) optionally, one or more anti-blocking agents; and (4) optionally, one or more surfactants.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: August 29, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert E. Martinson, John J. Stofko, Manisha Sarkar, Steven T. Hedrick, Wayne K. Larson
  • 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.