Patents by Inventor David McCanna

David McCanna 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: 7282178
    Abstract: This invention is directed to an aqueous composition and methods for clean lipid deposits on contact lenses. In particular, a combination of non-ionic surfactants, branched and/or straight poly(ethylene oxide-propylene oxide) (PEO-PPO) block copolymers having HLB value greater than or equal to 18, with an additional straight poly(ethylene oxide-propylene oxide) (PEO-PPO) block copolymers having HLB value less than or equal to 15, has been found to improve the lipid cleaning properties of an aqueous composition for contact lenses and prevent the overgrowth of harmful bacteria, yeast and molds without adversely affecting the comfort or safety in terms of the level of toxicity to eye tissue.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: October 16, 2007
    Assignee: Bausch & Lomb Incorporated
    Inventors: Joseph C. Salamone, Roya Borazjani, Vicki Barniak, Robert Manchester, David McCanna
  • Publication number: 20060275173
    Abstract: This invention is directed to a method of treating a silicone hydrogel lens to cleaning lipid deposits thereon. The method comprises administering to the contact lens a solution comprising a first straight chain polyether surfactant. The first straight chain polyether surfactant has an HLB value that is a minimum of about 18. The second straight chain polyether surfactant has an HLB value that is a minimum of about 12 and a maximum of about 18. The second surfactant is present in an amount effective to improve the ability to remove lipids from a silicone hydrogel lens.
    Type: Application
    Filed: May 30, 2006
    Publication date: December 7, 2006
    Inventors: Roya Borazjani, Joseph Salamone, Vicki Barniak, Robert Manchester, David McCanna
  • Publication number: 20060276359
    Abstract: This invention is directed to an aqueous composition and methods for cleaning lipid deposits and/or prevention of lipid deposition on contact lenses. In particular, a combination of non-ionic surfactants, straight chain poly(ethylene oxide-propylene oxide-ethylene oxide) (PEO—PPO—PEO) block copolymers having HLB value greater than or equal to 18, with an additional straight chain poly(ethylene oxide-propylene oxide-ethylene oxide) (PEO—PPO—PEO) block copolymer having an HLB value less than or equal to 11, has been found to improve the lipid cleaning properties of an aqueous composition for contact lenses and prevent the overgrowth of harmful bacteria, yeast and molds without adversely affecting the comfort or safety in terms of the level of toxicity to eye tissue.
    Type: Application
    Filed: May 30, 2006
    Publication date: December 7, 2006
    Inventors: Roya Borazjani, Joseph Salamone, Vicki Barniak, Robert Manchester, David McCanna
  • Publication number: 20060276358
    Abstract: This invention is directed to an aqueous composition and methods for clean lipid deposits on contact lenses. In particular, a combination of non-ionic surfactants, branched and/or straight poly(ethylene oxide-propylene oxide) (PEO-PPO) block copolymers having HLB value greater than or equal to 18, with an additional straight poly(ethylene oxide-propylene oxide) (PEO-PPO) block copolymers having HLB value less than or equal to 15, has been found to improve the lipid cleaning properties of an aqueous composition for contact lenses and prevent the overgrowth of harmful bacteria, yeast and molds without adversely affecting the comfort or safety in terms of the level of toxicity to eye tissue.
    Type: Application
    Filed: May 30, 2006
    Publication date: December 7, 2006
    Inventors: Joseph Salamone, Roya Borazjani, Vicki Barniak, Robert Manchester, David McCanna
  • Publication number: 20050202983
    Abstract: Compositions are described which are useful in preventing the loss of tight epithelial cell junctions upon topical application. Such compositions include one or more carbohydrates in an amount effective to prevent the loss of tight cell junctions and hence improve the management of tissue health.
    Type: Application
    Filed: March 12, 2004
    Publication date: September 15, 2005
    Inventors: Erning Xia, Joseph Salamone, David McCanna