Patents by Inventor Timothy D. Dunbar

Timothy D. Dunbar 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: 20110064867
    Abstract: Powder drug compositions exhibiting improved flow properties are manufactured by spraying a suspension of surface-modified nanoparticles having an average particle size diameter of less than 100 nm in a dryable liquid carrier onto particles of a powder ingredient of a drug composition. The liquid carrier is rapidly dried so as to leave the nanoparticles on the powder. Other ingredients of the powder drug composition can also be added.
    Type: Application
    Filed: April 17, 2009
    Publication date: March 17, 2011
    Inventors: Stephen W. Stein, Michael W. Mueting, Timothy D. Dunbar
  • Publication number: 20100266485
    Abstract: A process comprises (a) combining (1) at least one base and (2) at least one metal carboxylate salt comprising (i) a metal cation selected from metal cations that form amphoteric metal oxides or oxyhydroxides and (ii) a lactate or thiolactate anion, or metal carboxylate salt precursors comprising (i) at least one metal salt comprising the metal cation and a non-interfering anion and (ii) lactic or thiolactic acid, a lactate or thiolactate salt of a non-interfering, non-metal cation, or a mixture thereof; and (b) allowing the base and the metal carboxylate salt or metal carboxylate salt precursors to react.
    Type: Application
    Filed: December 16, 2008
    Publication date: October 21, 2010
    Inventor: Timothy D. Dunbar
  • Publication number: 20100266697
    Abstract: A composition comprises surface-modified nanoparticles of at least one amphoteric metal oxide or oxyhydroxide. The nanoparticles bear, on at least a portion of their surfaces, a surface modification comprising (i) at least one surface modifier selected from lactate, thiolactate, and mixtures thereof, and (ii) at least one surface modifier selected from halide, nitrate, acetate, carbonate, formate, propionate, sulfate, bromate, perchlorate, tribromoacetate, trichloroacetate, trifluoroacetate, carboxylate comprising from one to about four alkyleneoxy moieties, chlorate, and mixtures thereof.
    Type: Application
    Filed: December 16, 2008
    Publication date: October 21, 2010
    Inventor: Timothy D. Dunbar
  • Publication number: 20100008847
    Abstract: A process comprises (a) combining (1) at least one base and (2) at least one metal carboxylate salt comprising (i) a metal cation selected from metal cations that form amphoteric metal oxides or oxyhydroxides and (ii) a carboxylate anion comprising from one to four alkyleneoxy moieties, or metal carboxylate salt precursors comprising (i) at least one metal salt comprising the metal cation and a non-interfering anion and (ii) at least one carboxylic acid comprising from one to four alkyleneoxy moieties, at least one salt of the carboxylic acid and a non-interfering, non-metal cation, or a mixture thereof; and (b) allowing the base and the metal carboxylate salt or metal carboxylate salt precursors to react.
    Type: Application
    Filed: December 18, 2007
    Publication date: January 14, 2010
    Inventor: Timothy D. Dunbar
  • Patent number: 7507618
    Abstract: A method of making a thin film transistor comprises (a) solution depositing a dispersion comprising semiconducting metal oxide nanoparticles onto a substrate, (b) sintering the nanoparticles to form a semiconductor layer, and (c) optionally subjecting the resulting semiconductor layer to post-deposition processing.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: March 24, 2009
    Assignee: 3M Innovative Properties Company
    Inventor: Timothy D. Dunbar
  • Patent number: 7399668
    Abstract: A method of making an electronic device by (a) depositing a substantially nonfluorinated polymeric layer onto a dielectric layer using a plasma-based deposition technique selected from the group consisting of (i) plasma polymerizing a precursor comprising monomers, and (ii) sputtering from a target comprising one or more polymers of interpolymerized units of monomers, the monomers being selected from the group consisting of aromatic monomers, substantially hydrocarbon monomers, and combinations thereof; and (b) depositing an organic semiconductor layer adjacent to said polymeric layer.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 15, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy D. Dunbar, Tommie W. Kelley
  • Publication number: 20080145701
    Abstract: A method of making an electronic device by (a) depositing a substantially nonfluorinated polymeric layer onto a dielectric layer using a plasma-based deposition technique selected from the group consisting of (i) plasma polymerizing a precursor comprising monomers, and (ii) sputtering from a target comprising one or more polymers of interpolymerized units of monomers, the monomers being selected from the group consisting of aromatic monomers, substantially hydrocarbon monomers, and combinations thereof; and (b) depositing an organic semiconductor layer adjacent to said polymeric layer.
    Type: Application
    Filed: February 19, 2008
    Publication date: June 19, 2008
    Inventors: Timothy D. Dunbar, Tommie W. Kelley
  • Patent number: 7352038
    Abstract: Provided is an organic thin film transistor comprising a polymeric layer interposed between a gate dielectric and an organic semiconductor layer. Various homopolymers, copolymers, and functional copolymers are taught for use in the polymeric layer. An integrated circuit comprising a multiplicity of thin film transistors and methods of making a thin film transistor are also provided. The organic thin film transistors of the invention typically exhibit improvement in one or more transistor properties.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: April 1, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Tommie W. Kelley, Larry D. Boardman, Timothy D. Dunbar, Todd D. Jones, Dawn V. Muyres, Mark J. Pellerite, Terrance P. Smith
  • Patent number: 7352000
    Abstract: Provided is an organic thin film transistor comprising a polymeric layer interposed between a gate dielectric and an organic semiconductor layer. Various homopolymers, copolymers, and functional copolymers are taught for use in the polymeric layer. An integrated circuit comprising a multiplicity of thin film transistors and methods of making a thin film transistor are also provided. The organic thin film transistors of the invention typically exhibit improvement in one or more transistor properties.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: April 1, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Tommie W. Kelley, Larry D. Boardman, Timothy D. Dunbar, Todd D. Jones, Dawn V. Muyres, Mark J. Pellerite, Terrance P. Smith
  • Patent number: 6946676
    Abstract: Provided is an organic thin film transistor comprising a polymeric layer interposed between a gate dielectric and an organic semiconductor layer. Various homopolymers, copolymers, and functional copolymers are taught for use in the polymeric layer. An integrated circuit comprising a multiplicity of thin film transistors and methods of making a thin film transistor are also provided. The organic thin film transistors of the invention typically exhibit improvement in one or more transistor properties.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: September 20, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Tommie W. Kelley, Larry D. Boardman, Timothy D. Dunbar, Todd D. Jones, Dawn V. Muyres, Mark J. Pellerite, Terrance P. Smith
  • Patent number: 6841079
    Abstract: Silicon substrates having Si—H bonds are chemically modified using a fluorinated olefin having the formula: wherein m is an integer greater than or equal to 1; n is an integer greater than or equal to 0; Z is a divalent linking group; and Rf is a highly fluorinated organic group.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: January 11, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy D. Dunbar, Lawrence A. Zazzera, Mark J. Pellerite, Larry D. Boardman, George G. Moore, Miguel A. Guerra, Cheryl L. Elsbernd
  • Patent number: 6768132
    Abstract: An organic thin film transistor comprising a self-assembled monolayer interposed between a gate dielectric and an organic semiconductor layer. The monolayer is a product of a reaction between the gate dielectric and a precursor to the self-assembled monolayer. The semiconductor layer comprises a material selected from an acene, substituted with at least one electron-donating group, halogen atom, or a combination thereof, or a benzo-annellated acene or polybenzo-annellated acene, which optionally is substituted with at least one electron-donating group, halogen atom, or a combination thereof. Methods of making a thin film transistor and an integrated circuit comprising thin film transistors.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: July 27, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Terrance P. Smith, Mark J. Pellerite, Tommie W. Kelley, Dawn V. Muyres, Dennis E. Vogel, Kim M. Vogel, Larry D. Boardman, Timothy D. Dunbar
  • Publication number: 20030226818
    Abstract: Silicon substrates having Si—H bonds are chemically modified using a fluorinated olefin having the formula: 1
    Type: Application
    Filed: May 31, 2002
    Publication date: December 11, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Timothy D. Dunbar, Lawrence A. Zazzera, Mark J. Pellerite, Larry D. Boardman, George G. Moore, Miguel A. Guerra, Cheryl L. Elsbernd
  • Publication number: 20030175551
    Abstract: Provided is an organic thin film transistor comprising a self-assembled monolayer interposed between a gate dielectric and an organic semiconductor layer. The monolayer is a product of a reaction between the gate dielectric and a precursor to the self-assembled monolayer. The semiconductor layer comprises a material selected from an acene, substituted with at least one electron-donating group, halogen atom, or a combination thereof, or a benzo-annellated acene or polybenzo-annellated acene, which optionally is substituted with at least one electron-donating group, halogen atom, or a combination thereof.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 18, 2003
    Inventors: Terrance P. Smith, Mark J. Pellerite, Tommie W. Kelley, Dawn V. Muyres, Dennis E. Vogel, Kim M. Vogel, Larry D. Boardman, Timothy D. Dunbar
  • Patent number: 6617609
    Abstract: Provided is an organic thin film transistor comprising a siloxane polymeric layer interposed between a gate dielectric and an organic semiconductor layer. An integrated circuit comprising thin film transistors and methods of making a thin film transistor are also provided. The organic thin film transistors of the invention typically exhibit improvement in one or more transistor properties.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: September 9, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Tommie W. Kelley, Larry D. Boardman, Timothy D. Dunbar, Todd D. Jones, Dawn V. Muyres, Mark J. Pellerite, Terrance P. Smith
  • Publication number: 20030102471
    Abstract: Provided is an organic thin film transistor comprising a polymeric layer interposed between a gate dielectric and an organic semiconductor layer. Various homopolymers, copolymers, and functional copolymers are taught for use in the polymeric layer. An integrated circuit comprising a multiplicity of thin film transistors and methods of making a thin film transistor are also provided. The organic thin film transistors of the invention typically exhibit improvement in one or more transistor properties.
    Type: Application
    Filed: November 5, 2001
    Publication date: June 5, 2003
    Inventors: Tommie W. Kelley, Larry D. Boardman, Timothy D. Dunbar, Todd D. Jones, Dawn V. Muyres, Mark J. Pellerite, Terrance P. Smith
  • Publication number: 20030102472
    Abstract: Provided is an organic thin film transistor comprising a siloxane polymeric layer interposed between a gate dielectric and an organic semiconductor layer. An integrated circuit comprising thin film transistors and methods of making a thin film transistor are also provided. The organic thin film transistors of the invention typically exhibit improvement in one or more transistor properties.
    Type: Application
    Filed: November 5, 2001
    Publication date: June 5, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Tommie W. Kelley, Larry D. Boardman, Timothy D. Dunbar, Todd D. Jones, Dawn V. Muyres, Mark J. Pellerite, Terrance P. Smith
  • Patent number: 6433359
    Abstract: Provided is an organic thin film transistor comprising a self-assembled monolayer interposed between a gate dielectric and an organic semiconductor layer. The monolayer is a product of a reaction between the gate dielectric and a precursor to the self-assembled monolayer.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: August 13, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Tommie W. Kelley, Dawn V. Muyres, Mark J. Pellerite, Timothy D. Dunbar, Larry D. Boardman, Terrance P. Smith