Patents by Inventor Marcia Kay Ash

Marcia Kay Ash 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).

  • Method for lathing silicone hydrogel lenses
    Patent number: 9248614
    Abstract: The present invention provides methods for lathing at room temperature a silicone hydrogel material, in particular silicone hydrogel material having a high oxygen permeability and made of a polymerizable composition containing a relative large amount of oxyperm component, into contact lenses.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: February 2, 2016
    Assignee: Novartis AG
    Inventors: John Christopher Phelan, Michael Hugh Quinn, Rafael Victor Andino, Marcia Kay Ash, Allen Douglas Gilliard, Tomasz Jankiewicz, Courtney Flem Morgan, Joseph Michael Lindacher, Corneliu Daniel Niculas
  • Silicone hydrogels
    Patent number: 7671156
    Abstract: The present invention provides silicone hydrogel materials having relatively high oxygen permeability and a relatively low modulus. The relatively-low modulus is achieved by adding a chain transfer agent into a polymerizable fluid composition in an amount sufficient to provide to the resultant silicone hydrogel material with a reduced modulus. In addition, the invention provides silicone hydrogel contact lenses comprising a silicone hydrogel material of the invention, a method for making a silicone hydrogel material of the invention, and a method for making a silicone hydrogel contact lens of the invention.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: March 2, 2010
    Assignee: Novartis AG
    Inventors: John Christopher Phelan, Angelika Maria Domschke, Marcia Kay Ash
  • Medical devices having antimicrobial coatings thereon
    Publication number: 20080260804
    Abstract: The present invention provides a medical device, preferably a contact lens, which comprises an antimicrobial coating including at least one layer of polyquat of formula (I) or (II). The antimicrobial coating on the medical device of the invention has a high antimicrobial efficacy against microorganisms including Gram-positive and Gram-negative bacterial, a low toxicity, low coefficient of friction, and increased hydrophilicity while maintaining the desired bulk properties such as oxygen permeability and ion permeability of lens material. Such lenses are useful as extended-wear contact lenses. In addition, the invention provides a method for making a medical device, preferably a contact lens, having an antimicrobial coating thereon.
    Type: Application
    Filed: June 18, 2008
    Publication date: October 23, 2008
    Inventors: Carol Ann Morris, Manal M. Gabriel, Yongxing Qiu, Lynn Cook Winterton, John Martin Lally, Marcia Kay Ash, Fiona Patricia Carney, Courtney Flem Morgan
  • Medical devices having antimicrobial coatings thereon
    Patent number: 7402318
    Abstract: The present invention provides a medical device, preferably a contact lens, which comprises an antimicrobial coating including at least one layer of polyquat of formula (I) or (II). The antimicrobial coating on the medical device of the invention has a high antimicrobial efficacy against microorganisms including Gram-positive and Gram-negative bacterial, a low toxicity, low coefficient of friction, and increased hydrophilicity while maintaining the desired bulk properties such as oxygen permeability and ion permeability of lens material. Such lenses are useful as extended-wear contact lenses. In addition, the invention provides a method for making a medical device, preferably a contact lens, having an antimicrobial coating thereon.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: July 22, 2008
    Assignee: Novartis AG
    Inventors: Carol Ann Morris, Manal M. Gabriel, Yongxing Qiu, Lynn Cook Winterton, John Martin Lally, Marcia Kay Ash, Fiona Patricia Carney, Courtney Flem Morgan
  • Medical devices having antimicrobial coatings thereon
    Publication number: 20030117579
    Abstract: The present invention provides a medical device, preferably a contact lens, which comprises an antimicrobial coating including at least one layer of polyquat of formula (I) or (II). The antimicrobial coating on the medical device of the invention has a high antimicrobial efficacy against microorganisms including Gram-positive and Gram-negative bacterial, a low toxicity, low coefficient of friction, and increased hydrophilicity while maintaining the desired bulk properties such as oxygen permeability and ion permeability of lens material. Such lenses are useful as extended-wear contact lenses. In addition, the invention provides a method for making a medical device, preferably a contact lens, having an antimicrobial coating thereon.
    Type: Application
    Filed: November 4, 2002
    Publication date: June 26, 2003
    Inventors: Carol Ann Morris, Manal M. Gabriel, Yongxing Qiu, Lynn Cook Winterton, John Martin Lally, Marcia Kay Ash, Fiona Patricia Carney, Courtney Flem Morgan