Patents by Inventor Khalid Mentak

Khalid Mentak 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).

  • Publication number: 20090112313
    Abstract: This invention relates to a method of making an intraocular lens insertion device comprising a lubricious insertion tip assembly and to the device itself.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Inventor: Khalid Mentak
  • Patent number: 7446157
    Abstract: The present invention relates to novel materials particularly useful for ophthalmic applications and methods for making and using the same. More particularly, the present invention relates to relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and using the same.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: November 4, 2008
    Assignee: Key Medical Technologies, Inc.
    Inventors: Khalid Mentak, Anthony Keslinke, Kevin Phan
  • Publication number: 20080188930
    Abstract: This invention relates to intraocular lenses. More particularly, this invention relates to intraocular lenses that have the ability to alter the light refractive power in response to changes in the tension of the ciliary muscle or ciliary body of the eye or any other accommodative forces. Lenses of this invention are generally referred to as interfacial, i.e., lens properties being defined as the interface of two liquids having different refractive indices, refractive accommodating lenses (IRAL).
    Type: Application
    Filed: February 4, 2008
    Publication date: August 7, 2008
    Inventors: Khalid Mentak, Beda Steinacher
  • Patent number: 7399811
    Abstract: The present invention relates to novel materials particularly useful for ophthalmic applications and methods for making and using the same. More particularly, the present invention relates to relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and using the same.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: July 15, 2008
    Assignee: Key Medical Technologies, Inc.
    Inventors: Khalid Mentak, Anthony Keslinke, Kevin Phan
  • Patent number: 7354980
    Abstract: This invention relates to novel copolymers preferably for intraocular lenses (“IOL”), contact lens, and other ophthalmic and optical applications. This invention, in one aspect, relates to copolymer compositions comprising limited amounts of a monomer having a naphthyl moiety or naphthyl functionalities, naphthalene, or a naphthyl group.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: April 8, 2008
    Assignee: Key Medical Technologies, Inc.
    Inventor: Khalid Mentak
  • Publication number: 20080076851
    Abstract: An improved method for modifying the surface of an article, the surface adapted for contact with living tissue of a human or non-human animal, by the gamma- or electron beam-irradiation induced polymerized, chemically grafted coating thereon of a hydrophilic monomer to form a hydrophilic graft polymer coating of the polymerized monomer or mixture of monomers, the improvement comprising conducting the gamma- or electron beam-irradiation induced graft polymerization in an aqueous solution containing a hydrophilic polymer under conditions whereby the hydrophilic polymer is at least partially entrapped in the graft polymerized coating.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 27, 2008
    Inventors: Eugene Goldberg, Khalid Mentak, Daniel Urbaniak, Amin Elachchabi
  • Publication number: 20080064821
    Abstract: The present invention relates to novel materials particularly useful for ophthalmic applications and methods for making and using the same. More particularly, the present invention relates to relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and using the same.
    Type: Application
    Filed: November 19, 2007
    Publication date: March 13, 2008
    Inventors: Khalid Mentak, Anthony Keslinke, Kevin Phan
  • Publication number: 20080064840
    Abstract: The present invention relates to novel materials particularly useful for ophthalmic applications and methods for making and using the same. More particularly, the present invention relates to relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and using the same.
    Type: Application
    Filed: November 19, 2007
    Publication date: March 13, 2008
    Inventors: Khalid Mentak, Anthony Keslinke, Kevin Phan
  • Publication number: 20070282057
    Abstract: The present invention relates to an intraocular lens which exhibits reduced or eliminated glistenings when implanted into the eye of a patient in need thereof and to a method of preparing such lens.
    Type: Application
    Filed: May 21, 2007
    Publication date: December 6, 2007
    Inventors: Khalid Mentak, Margaret Aldred
  • Publication number: 20070010883
    Abstract: The current invention provides a method of forming a foldable intraocular having a high refractive index from a copolymer comprising a first monomer comprising an aryl acrylate or an aryl methacrylate; a second monomer comprising an aromatic ring comprising a substituent having one ethylenic unsaturation, provided that the second monomer is not an aryl acryate or aryl methacrylate, and a third monomer comprising one ethylenic unsaturation that, if polymerized into a homopolymer, forms a high water content hydrogel; and, optionally, a cross-linking agent.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 11, 2007
    Inventor: Khalid Mentak
  • Publication number: 20070004852
    Abstract: Blue light blocking chromophore (BLBC) ophthalmic devices are disclosed. In an embodiment, BLBC is relatively concentrated in the device center gradually decreasing to the device edge to create a BLBC gradient.
    Type: Application
    Filed: May 5, 2006
    Publication date: January 4, 2007
    Applicant: Key Medical Technologies, Inc.
    Inventor: Khalid Mentak
  • Publication number: 20070004863
    Abstract: Infinite gradient refractive index ophthalmic devices and methods of making same. The method involves diffusing a monomer which polymerizes to a lower or higher corresponding opposite refractive index polymer into a lower or higher index polymer structure and polymerizing same to create the gradient structure. The resulting polymeric structure is used to manufacture ophthalmic devices, e.g., intraocular lenses.
    Type: Application
    Filed: March 23, 2006
    Publication date: January 4, 2007
    Applicant: Key Medical Technologies, Inc.
    Inventor: Khalid Mentak
  • Publication number: 20060252844
    Abstract: Opthalmic devices, particularity intraocular lenses (IOL), with improved contrast sensitivity and methods of making same. In one aspect, blue light blocking chromophores (BLBC) are diffused into, e.g. an IOL lens body to create a BLBC gradient in the lens. Orange dyes are preferred BLBCs.
    Type: Application
    Filed: February 8, 2006
    Publication date: November 9, 2006
    Applicant: Key Medical Technologies, Inc.
    Inventor: Khalid Mentak
  • Patent number: 7083645
    Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: August 1, 2006
    Assignee: Advanced Vision Science, Inc.
    Inventor: Khalid Mentak
  • Publication number: 20060122349
    Abstract: The present invention relates to novel materials particularly useful for ophthalmic applications and methods for making and using the same. More particularly, the present invention relates to relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and using the same.
    Type: Application
    Filed: December 7, 2004
    Publication date: June 8, 2006
    Applicant: Key Medical Technologies, Inc.
    Inventors: Khalid Mentak, Anthony Keslinke, Kevin Phan
  • Patent number: 6852820
    Abstract: Solid rigid acrylic copolymer materials, useful for forming ophthalmic devices, are processed into the shape of an ophthalmic device, such as an intraocular lens and are then processed into a foldable form. The acrylic copolymer material has polymer units derived from an ?,?-ethylenically unsaturated carboxylic acid monomer, such as, (meth)acrylic acid, 1-butenoic acid, and the like, and an aryl(meth)acrylate monomer, such as, phenyl(meth)acrylate, 2-ethyloxy(meth)acrylate, and the like. The processing into a foldable shape may be accomplished by contacting the rigid material, having a Tg of 25° C. or higher, with an alcohol, preferably in the presence of acid catalyst, to lower the Tg to 20° C. or less.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: February 8, 2005
    Assignee: Nidek Co., Ltd.
    Inventor: Khalid Mentak
  • Patent number: 6635732
    Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: October 21, 2003
    Assignee: Surgidev Corporation
    Inventor: Khalid Mentak
  • Patent number: 6635731
    Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: October 21, 2003
    Assignee: Surgidev Corporation
    Inventor: Khalid Mentak
  • Publication number: 20020151667
    Abstract: Solid rigid acrylic copolymer materials, useful for forming ophthalmic devices, are processed into the shape of an ophthalmic device, such as an intraocular lens and are then processed into a foldable form. The acrylic copolymer material has polymer units derived from an &agr;&bgr;-ethylenically unsaturated carboxylic acid monomer, such as, (meth)acrylic acid, 1-butenoic acid, and the like, and an aryl (meth)acrylate monomer, such as, phenyl (meth)acrylate, 2-ethyloxy(meth)acrylate, and the like. The processing into a foldable shape may be accomplished by contacting the rigid material, having a Tg of 25° C. or higher, with an alcohol, preferably in the presence of acid catalyst, to lower the Tg to 20° C. or less.
    Type: Application
    Filed: April 4, 2002
    Publication date: October 17, 2002
    Applicant: Nidek Co., Ltd.
    Inventor: Khalid Mentak
  • Publication number: 20020128417
    Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.
    Type: Application
    Filed: July 30, 2001
    Publication date: September 12, 2002
    Applicant: Surgidev Corporation
    Inventor: Khalid Mentak