Patents by Inventor Simon Rodney Evans

Simon Rodney Evans 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).

  • Bifocal contact lens
    Patent number: 7810925
    Abstract: A contact lens having near vision and distance vision portions, the lens being movable on the eye between first and second positions, those positions corresponding with aligning the wearer's vision through the near vision and distance vision portions respectively. The lens is positionally stable on the eye in each of the two positions, and requires a force to be applied to the lens to move between the first and second positions. Preferably the lens has a back surface and a front surface, and said back surface has either one or two major back curve zones occupying a major portion of the lens back surface.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: October 12, 2010
    Inventors: Simon Rodney Evans, Arthur Ho, Geoffrey Peter Brent, Klaus Ehrmann, Darrin Mark Falk, Sandya Indrani Perera, Jacqueline Tan, Renee Du Toit
  • BIFOCAL CONTACT LENS
    Publication number: 20090231542
    Abstract: A contact lens having near vision and distance vision portions, the lens being movable on the eye between first and second positions, those positions corresponding with aligning the wearer's vision through the near vision and distance vision portions respectively. The lens is positionally stable on the eye in each of the two positions, and requires a force to be applied to the lens to move between the first and second positions. Preferably the lens has a back surface and a front surface, and said back surface has either one or two major back curve zones occupying a major portion of the lens back surface.
    Type: Application
    Filed: April 30, 2009
    Publication date: September 17, 2009
    Inventors: Simon Rodney EVANS, Arthur Ho, Geoffrey Peter Brent, Klaus Ehrmann, Darrin Mark Falk, Sandya Indrani Perera, Jacqueline Tan, Renee Du Toit
  • Soft lens orthokeratology
    Patent number: 7556375
    Abstract: A corneal reshaping by means of a soft contact lens to manipulate tear pressure gradient to produce a dimensional change to the surface profile of the cornea of the wearer to provide at least a temporary change in the refractive state of the eye eliminating the need for other refractive corrections. The contact lens has mechanical properties and/or a geometric shape such that when the lens is fitted to the eye the pressure applied to the eye via the lens will vary in a radial direction between at least one zone of higher pressure and at least one zone of lower pressure so that wearing the lens will over time cause a dimensional change to the surface layer of the cornea.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: July 7, 2009
    Assignee: The Institute for Eye Research
    Inventors: Patrick Joseph Caroline, Peter Donald Bergenske, Jennifer Denise Choo, Stacy Sanaz Aboutalebi, Simon Rodney Evans, Arthur Ho, Eric Basil Papaspiliotopoulos, Brien Anthony Holden
  • Bifocal contact lens
    Patent number: 7537338
    Abstract: A contact lens having near vision and distance vision portions, the lens being movable on the eye between first and second positions, those positions corresponding with aligning the wearer's vision through the near vision and distance vision portions respectively. The lens is positionally stable on the eye in each of the two positions, and requires a force to be applied to the lens to move between the first and second positions. Preferably the lens has a back surface and a front surface, and said back surface has either one or two major back curve zones occupying a major portion of the lens back surface.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 26, 2009
    Inventors: Simon Rodney Evans, Arthur Ho, Geoffrey Peter Brent, Klaus Ehrmann, Darrin Mark Falk, Sandya Indrani Perera, Jacqueline Tan, Renee Du Toit