Patents by Inventor Stephen Ronald Tonge

Stephen Ronald Tonge 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).

  • Contact lens packing solutions
    Patent number: 6699435
    Abstract: The present invention is directed to new and improved solutions for packaging contact lenses and to methods for treating contact lenses with such solutions to improve the comfort of the lenses during wear. In particular, the present invention is directed to packing solutions comprising certain non-ionic surfactants containing a poly(oxyalkylene) copolymer and having a molecular weight of 4000 to 30,000. Such surfactants are retained on the surface of an unused lens for extended periods of time, resulting in surface modification that persists in the eye, thereby providing significant improvement in the wetting properties of fresh contact lenses used for the first time and, moreover, even several hours after lens insertion, preventing dryness and improving lubricity.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: March 2, 2004
    Assignee: Bausch & Lomb Incorporated
    Inventors: Anil Salpekar, Stephen Ronald Tonge
  • Contact lens packing solutions
    Publication number: 20030109390
    Abstract: The present invention is directed to new and improved solutions for packaging contact lenses and to methods for treating contact lenses with such solutions to improve the comfort of the lenses during wear. In particular, the present invention is directed to packing solutions comprising certain non-ionic surfactants containing a poly(oxyalkylene) copolymer and having a molecular weight of 4000 to 30,000. Such surfactants are retained on the surface of an unused lens for extended periods of time, resulting in surface modification that persists in the eye, thereby providing significant improvement in the wetting properties of fresh contact lenses used for the first time and, moreover, even several hours after lens insertion, preventing dryness and improving lubricity.
    Type: Application
    Filed: July 18, 2002
    Publication date: June 12, 2003
    Applicant: Bausch & Lomb Incorporated
    Inventors: Anil Salpekar, Stephen Ronald Tonge
  • Contact lens packing solutions
    Patent number: 6440366
    Abstract: The present invention is directed to new and improved solutions for packaging contact lenses and to methods for treating contact lenses with such solutions to improve the comfort of the lenses during wear. In particular, the present invention is directed to packing solutions comprising certain non-ionic surfactants containing a poly(oxyalkylene) copolymer and having a molecular weight of 4000 to 30,000. Such surfactants are retained on the surface of an unused lens for extended periods of time, resulting in surface modification that persists in the eye, thereby providing significant improvement in the wetting properties of fresh contact lenses used for the first time and, moreover, even several hours after lens insertion, preventing dryness and improving lubricity.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: August 27, 2002
    Assignee: Bausch & Lomb Incorporated
    Inventors: Anil Salpekar, Stephen Ronald Tonge