Patents by Inventor Benjamin S. Sheader

Benjamin S. Sheader 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).

  • Ophthalmic lens molds with low levels of UV light transmittance, ophthalmic lenses molded therein, and related methods
    Patent number: 9498924
    Abstract: Ophthalmic lens molds made from one or more thermoplastic polymer having a low level of UV light transmittance (UV % T) ophthalmic lenses including silicone hydrogel contact lenses molded using these thermoplastic polymer having low UV % T, and methods of manufacturing ophthalmic lenses by cast molding a polymerizable composition in mold members formed of these thermoplastic polymers having low UV % T and curing the polymerizable composition using UV light are described.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: November 22, 2016
    Assignee: CooperVision International Holding Company, LP
    Inventors: Lee Darren Norris, Edyta S. Bialek, Sarah L. Almond, David Robert Morsley, A. K. M. Shahab Siddiqui, Richard C. Rogers, Ian Bruce, Benjamin S. Sheader
  • Ophthalmic lens molds, ophthalmic lenses molded therein, and related methods
    Patent number: 9193118
    Abstract: Methods of manufacturing contact lenses using ophthalmic lens molds having a molding surface comprising a thermoplastic polymer, the molding surface having a percent polarity from 3% to 20% and a surface energy from about 25 mN/m to about 40 mN/m to cast mold a polymerizable composition having a surface tension from about 20 mN/m to about 25 mN/m, wherein a surface energy differential of the surface tension of the polymerizable composition less the surface energy of the molding surface less than or equal to zero (0); and silicone hydrogel contact lens bodies so manufactured are described.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: November 24, 2015
    Assignee: CooperVision International Holding Company, LP
    Inventors: A. K. M. Shahab Siddiqui, David Robert Morsley, Sarah L. Almond, Richard C. Rogers, Ian Bruce, Lee Darren Norris, Edyta S. Bialek, Benjamin S. Sheader
  • Polar thermoplastic ophthalmic lens molds, ophthalmic lenses molded therein, and related methods
    Patent number: 9156214
    Abstract: Ophthalmic lens molds made from one or more thermoplastic polymers with average polarities from about 1% to about 7%, ophthalmic lenses including silicone hydrogel contact lenses molded using these less polar thermoplastic polymers, and related methods are described. When the molds are used to cast mold silicone hydrogel contact lenses, the resulting polymerized lens bodies have ophthalmically acceptably wettable surfaces.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: October 13, 2015
    Assignee: CooperVision International Holding Company, LP
    Inventors: Lee Darren Norris, Edyta S. Bialek, Sarah L. Almond, David Robert Morsley, A. K. M. Shahab Siddiqui, Richard C. Rogers, Ian Bruce, Benjamin S. Sheader
  • Ophthalmic Lens Molds With Low Levels Of UV Light Transmittance, Ophthalmic Lenses Molded Therein, And Related Methods
    Publication number: 20130293831
    Abstract: Ophthalmic lens molds made from one or more thermoplastic polymer having a low level of UV light transmittance (UV % T) ophthalmic lenses including silicone hydrogel contact lenses molded using these thermoplastic polymer having low UV % T, and methods of manufacturing ophthalmic lenses by cast molding a polymerizable composition in mold members formed of these thermoplastic polymers having low UV % T and curing the polymerizable composition using UV light are described.
    Type: Application
    Filed: July 8, 2011
    Publication date: November 7, 2013
    Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LP
    Inventors: Lee Darren Norris, Edyta S. Bialek, Sarah L. Almond, David Robert Morsley, A.K.M. Shahab Siddiqui, Richard C. Rogers, Ian Bruce, Benjamin S. Sheader
  • Polar Thermoplastic Ophthalmic Lens Molds, Ophthalmic Lenses Molded Therein, And Related Methods
    Publication number: 20130162942
    Abstract: Ophthalmic lens molds made from one or more thermoplastic polymers with average polarities from about 1% to about 7%, ophthalmic lenses including silicone hydrogel contact lenses molded using these less polar thermoplastic polymers, and related methods are described. When the molds are used to cast mold silicone hydrogel contact lenses, the resulting polymerized lens bodies have ophthalmically acceptably wettable surfaces.
    Type: Application
    Filed: July 8, 2011
    Publication date: June 27, 2013
    Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LP
    Inventors: Lee Darren Norris, Edyta S. Bialek, Sarah L. Almond, David Robert Morsley, A.K.M. Shahab Siddiqui, Richard C. Rogers, Ian Bruce, Benjamin S. Sheader
  • Ophthalmic Lens Molds, Ophthalmic Lenses Molded Therein, And Related Methods
    Publication number: 20130155372
    Abstract: Methods of manufacturing contact lenses using ophthalmic lens molds having a molding surface comprising a thermoplastic polymer, the molding surface having a percent polarity from 3% to 20% and a surface energy from about 25 mN/m to about 40 mN/m to cast mold a polymerizable composition having a surface tension from about 20 mN/m to about 25 mN/m, wherein a surface energy differential of the surface tension of the polymerizable composition less the surface energy of the molding surface less than or equal to zero (0); and silicone hydrogel contact lens bodies so manufactured are described.
    Type: Application
    Filed: July 29, 2011
    Publication date: June 20, 2013
    Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LP
    Inventors: A.K.M. Shahab Siddiqui, David Robert Morsley, Sarah L. Almond, Richard C. Rogers, Ian Bruce, Lee Darren Norris, Edyta S. Bialek, Benjamin S. Sheader