Patents by Inventor Nancy S. Lennhoff

Nancy S. Lennhoff 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: 9809717
    Abstract: The disclosure provides polymers having antimicrobial activity and articles with the polymers coated thereon. The polymers include a first pendant group comprising a first cationic component, a second pendant group comprising a nonpolar component, and a third pendant group comprising an organosilane component. The disclosure also includes methods of coating medical device articles and body fluid-receiving substrates with the antimicrobial polymers. The methods further include the use of adhesion-promoting components.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: November 7, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Mahfuza B. Ali, Naiyong Jing, Valeri Lirine, Pradnya V. Nagarkar, Caroline M. Ylitalo, Nancy S. Lennhoff, Matthew T. Scholz, Ranjani V. Parthasarathy
  • Patent number: 9642243
    Abstract: An article includes a multilayer structure, such as, e.g., a touch sensor, having two opposing sides and comprising a central polymeric UV transparent substrate, a transparent conductive layer on each of the two major opposing surfaces of the polymeric substrate, a metallic conductive layer on each transparent conductive layer, and a patterned photoimaging mask on each metallic conductive layer.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: May 2, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Muthu Sebastian, Dominic M. Travasso, Nancy S. Lennhoff, Steven T. Swartz
  • Patent number: 9557859
    Abstract: Method of making a touch sensor including one or more multilayer electrodes and an underlayer disposed on a substrate. The underlayer is disposed between the multilayer electrodes and the substrate. The multilayer electrodes including at least two transparent or semitransparent conductive layers separated by a transparent or semitransparent intervening layer. The intervening layer includes electrically conductive pathways between the first and second conductive layers to help reduce interfacial reflections occurring between particular layers in devices incorporating the conducting film or electrode.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: January 31, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Clark I. Bright, Nancy S. Lennhoff, Mark E. Flanzer, Dennis M. Brunner
  • Publication number: 20150175812
    Abstract: The disclosure provides polymers having antimicrobial activity and articles with the polymers coated thereon. The polymers include a first pendant group comprising a first quaternary ammonium component, a second pendant group comprising a nonpolar component, and a third pendant group comprising an organosilane component. The disclosure also includes methods of coating articles with the antimicrobial polymers. The methods further include the use of adhesion-promoting reagents.
    Type: Application
    Filed: March 6, 2015
    Publication date: June 25, 2015
    Inventors: MAHFUZA B. ALI, NAIYONG JING, VALERI LIRINE, PRADNA V. NAGARKAR, CAROLINE M. YLITALO, NANCY S. LENNHOFF, NARINA Y. STEPANOVA
  • Publication number: 20150024019
    Abstract: The disclosure provides polymers having antimicrobial activity and articles with the polymers coated thereon. The polymers include a first pendant group comprising a first cationic component, a second pendant group comprising a nonpolar component, and a third pendant group comprising an organosilane component. The disclosure also includes methods of coating medical device articles and body fluid-receiving substrates with the antimicrobial polymers. The methods further include the use of adhesion-promoting components.
    Type: Application
    Filed: May 25, 2011
    Publication date: January 22, 2015
    Inventors: Mahfuza B. Ali, Naiyong Jing, Valeri Lirine, Pradnya V. Nagarkar, Caroline M. Ylitalo, Nancy S. Lennhoff, Matthew T. Scholz, Ranjani V. Parthasarathy
  • Publication number: 20140299365
    Abstract: An article includes a multilayer structure, such as, e.g., a touch sensor, having two opposing sides and comprising a central polymeric UV transparent substrate, a transparent conductive layer on each of the two major opposing surfaces of the polymeric substrate, a metallic conductive layer on each transparent conductive layer, and a patterned photoimaging mask on each metallic conductive layer.
    Type: Application
    Filed: September 27, 2012
    Publication date: October 9, 2014
    Applicant: 3M Innovative Properties Company
    Inventors: Muthu Sebastian, Dominic M. Travasso, Nancy S. Lennhoff, Steven T. Swartz
  • Publication number: 20120313873
    Abstract: A touch sensor including one or more multilayer electrodes and an underlayer disposed on a substrate. The underlayer is disposed between the multilayer electrodes and the substrate. The multilayer electrodes including at least two transparent or semitransparent conductive layers separated by a transparent or semitransparent intervening layer. The intervening layer includes electrically conductive pathways between the first and second conductive layers to help reduce interfacial reflections occurring between particular layers in devices incorporating the conducting film or electrode.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 13, 2012
    Inventors: Clark I. BRIGHT, Nancy S. LENNHOFF, Mark E. FLANZER, Dennis M. BRUNNER
  • Publication number: 20120315383
    Abstract: Method of making a touch sensor including one or more multilayer electrodes and an underlayer disposed on a substrate. The underlayer is disposed between the multilayer electrodes and the substrate. The multilayer electrodes including at least two transparent or semitransparent conductive layers separated by a transparent or semitransparent intervening layer. The intervening layer includes electrically conductive pathways between the first and second conductive layers to help reduce interfacial reflections occurring between particular layers in devices incorporating the conducting film or electrode.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 13, 2012
    Inventors: Clark I. BRIGHT, Nancy S. Lennhoff, Mark E. Flanzer, Dennis M. Brunner
  • Publication number: 20120015200
    Abstract: The disclosure provides siliceous substrates with the antimicrobial compositions coated thereon. The disclosure also includes methods of coating articles with the antimicrobial compositions. The methods include heat treating the siliceous substrate not more than four hours prior to contacting the antimicrobial composition with the heat-treated substrate.
    Type: Application
    Filed: May 25, 2011
    Publication date: January 19, 2012
    Inventors: Mahfuza B. Ali, Naiyong Jing, Valeri Lirine, Pradnya V. Nagarkar, Caroline M. Ylitalo, Nancy S. Lennhoff
  • Publication number: 20120015002
    Abstract: The disclosure provides polymers having antimicrobial activity and articles with the polymers coated thereon. The polymers include a first pendant group comprising a first quaternary ammonium component, a second pendant group comprising a nonpolar component, and a third pendant group comprising an organosilane component. The disclosure also includes methods of coating articles with the antimicrobial polymers. The methods further include the use of adhesion-promoting reagents.
    Type: Application
    Filed: May 25, 2011
    Publication date: January 19, 2012
    Inventors: Mahfuza B. Ali, Naiyong Jing, Valeri Lirine, Pradnya V. Nagarkar, Caroline M. Ylitalo, Nancy S. Lennhoff
  • Patent number: 6838013
    Abstract: Substantially transparent electrodes are formed on a substrate by a process including forming on the substrate, in order, a bottom high index layer, a metallic conductive layer, and a top high index layer with a conductivity of at least about 400 ?/square; and chemically etching the bottom high index layer, the top high index layer and the conductive layer to form discrete electrodes in the metallic conductive layer.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: January 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Nancy S. Lennhoff, Jyothsna Ram
  • Patent number: 6652981
    Abstract: Substantially transparent electrodes are formed on a substrate by a process including forming on the substrate, in order, a bottom high index layer, a metallic conductive layer, and a top high index layer with a conductivity of at least about 400 &OHgr;/square; and chemically etching the bottom high index layer, the top high index layer and the conductive layer to form discrete electrodes in the metallic conductive layer.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: November 25, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Nancy S. Lennhoff, Jyothsna Ram
  • Publication number: 20030129424
    Abstract: Substantially transparent electrodes are formed on a substrate by a process including forming on the substrate, in order, a bottom high index layer, a metallic conductive layer, and a top high index layer with a conductivity of at least about 400 &OHgr;/square; and chemically etching the bottom high index layer, the top high index layer and the conductive layer to form discrete electrodes in the metallic conductive layer.
    Type: Application
    Filed: May 12, 2000
    Publication date: July 10, 2003
    Inventors: Nancy S. Lennhoff, Jyothsna Ram
  • Publication number: 20020182386
    Abstract: Substantially transparent electrodes are formed on a substrate by a process including forming on the substrate, in order, a bottom high index layer, a metallic conductive layer, and a top high index layer with a conductivity of at least about 400 &OHgr;/square; and chemically etching the bottom high index layer, the top high index layer and the conductive layer to form discrete electrodes in the metallic conductive layer.
    Type: Application
    Filed: June 12, 2002
    Publication date: December 5, 2002
    Inventors: Nancy S. Lennhoff, Jyothsna Ram