Patents by Inventor Leslie Alan Donovan

Leslie Alan Donovan 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).

  • Lens for Myopic Eye
    Publication number: 20210132413
    Abstract: An ophthalmic lens element includes an upper distance viewing zone and a lower near viewing zone. The upper distance viewing zone includes a central region with a first refractive power for clear distance vision and peripheral regions that are relatively positive in power compared to the first refractive power. The lower near viewing zone has a central region that is relatively positive in power compared to the first refractive power to account for accommodative lag. The powers of the peripheral regions of the lower near viewing zone are one of: i) equal to the power of the central region of the lower near viewing zone, ii) relatively positive in comparison to the power of the central region of the lower near viewing zone.
    Type: Application
    Filed: October 20, 2020
    Publication date: May 6, 2021
    Inventors: Padmaja Rajagopal Sankaridurg, Cathleen Fedtke, Leslie Alan Donovan, Earl Leo Smith, II, Arthur Ho, Brien Anthony Holden
  • Lens for myopic eye
    Patent number: 10845624
    Abstract: An ophthalmic lens element includes an upper distance viewing zone and a lower near viewing zone. The upper distance viewing zone includes a central region with a first refractive power for clear distance vision and peripheral regions that are relatively positive in power compared to the first refractive power. The lower near viewing zone has a central region that is relatively positive in power compared to the first refractive power to account for accommodative lag. The powers of the peripheral regions of the lower near viewing zone are one of: i) equal to the power of the central region of the lower near viewing zone, ii) relatively positive in comparison to the power of the central region of the lower near viewing zone.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: November 24, 2020
    Assignee: Brien Holden Vision Institute Limited
    Inventors: Padmaja Rajagopal Sankaridurg, Cathleen Fedtke, Leslie Alan Donovan, Earl Leo Smith, III, Arthur Ho, Brien Anthony Holden
  • Lens for Myopic Eye
    Publication number: 20190369416
    Abstract: An ophthalmic lens element includes an upper distance viewing zone and a lower near viewing zone. The upper distance viewing zone includes a central region with a first refractive power for clear distance vision and peripheral regions that are relatively positive in power compared to the first refractive power. The lower near viewing zone has a central region that is relatively positive in power compared to the first refractive power to account for accommodative lag. The powers of the peripheral regions of the lower near viewing zone are one of: i) equal to the power of the central region of the lower near viewing zone, ii) relatively positive in comparison to the power of the central region of the lower near viewing zone.
    Type: Application
    Filed: February 11, 2019
    Publication date: December 5, 2019
    Inventors: Padmaja Rajagopal Sankaridurg, Cathleen Fedtke, Leslie Alan Donovan, Earl Leo Smith, III, Arthur Ho, Brien Anthony Holden
  • Lens for correction of myopic refractive error
    Patent number: 10247964
    Abstract: An ophthalmic lens element includes an upper distance viewing zone and a lower near viewing zone. The upper distance viewing zone includes a central region with a first refractive power for clear distance vision and peripheral regions that are relatively positive in power compared to the first refractive power. The lower near viewing zone has a central region that is relatively positive in power compared to the first refractive power to account for accommodative lag. The powers of the peripheral regions of the lower near viewing zone are one of: i) equal to the power of the central region of the lower near viewing zone, ii) relatively positive in comparison to the power of the central region of the lower near viewing zone.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 2, 2019
    Assignee: Brien Holden Vision Institute
    Inventors: Padmaja Rajagopal Sankaridurg, Cathleen Fedtke, Leslie Alan Donovan, Earl Leo Smith, III, Arthur Ho, Brien Anthony Holden
  • Lens for Myopic Eye
    Publication number: 20150331255
    Abstract: An ophthalmic lens element includes an upper distance viewing zone and a lower near viewing zone. The upper distance viewing zone includes a central region with a first refractive power for clear distance vision and peripheral regions that are relatively positive in power compared to the first refractive power. The lower near viewing zone has a central region that is relatively positive in power compared to the first refractive power to account for accommodative lag. The powers of the peripheral regions of the lower near viewing zone are one of: i) equal to the power of the central region of the lower near viewing zone, ii) relatively positive in comparison to the power of the central region of the lower near viewing zone.
    Type: Application
    Filed: March 14, 2013
    Publication date: November 19, 2015
    Inventors: Padmaja Rajagopal Sankaridurg, Cathleen Fedtke, Leslie Alan Donovan, Earl Leo Smith, III, Arthur Ho, Brien Anthony Holden