Patents by Inventor Gary D. Friends

Gary D. Friends 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).

  • System for synthesis of device forming monomers
    Patent number: 7745564
    Abstract: Disclosed in embodiments herein is a method of synthesizing device forming monomers using N-(Vinyloxycarbonyloxy)succinimide.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: June 29, 2010
    Assignee: Bausch & Lomb Incorporated
    Inventors: Mahendra Nandu, Gary D. Friends, Mary Lou Friends, legal representative, David E. Seelye, Vinod Kumar Kansal, C. C. Shah, Dharmesh Balvantrai Mistry
  • Method of Releasing Contact Lens
    Publication number: 20080128930
    Abstract: A method of making a contact lens involves adding a lens-forming mixture to a contact lens mold, copolymerizing the lens-forming monomers to form a contact lens, releasing the contact lens from the mold; and removing the polymeric material from the contact lens. The polymeric material is not reactive with the lens-forming monomers, but is included in the lens-forming monomer mixture to facilitate releasing the contact lens from the mold.
    Type: Application
    Filed: November 20, 2007
    Publication date: June 5, 2008
    Inventors: Yu-Chin Lai, Gary D. Friends, Mary Lou Friends
  • Lens with colored portion and coated surface
    Patent number: 7147326
    Abstract: A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different than the lens-forming polymer. In the case of a cosmetic contact lens, the colorant may be applied in an annular ring pattern corresponding to an iris, so that the colorant pattern masks and changes the apparent color of the natural iris when the contact lens is worn.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: December 12, 2006
    Assignee: Bausch & Lomb Incorporated
    Inventors: Jay F. Künzler, Gary D. Friends, Daniel M. Ammon, Joseph A. McGee, Michael G. Gartley
  • Lens with colored portion and coated surface
    Patent number: 7021761
    Abstract: A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different than the lens-forming polymer. In the case of a cosmetic contact lens, the colorant may be applied in an annular ring pattern corresponding to an iris, so that the colorant pattern masks and changes the apparent color of the natural iris when the contact lens is worn.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 4, 2006
    Assignee: Bausch & Lomb Incorporated
    Inventors: Jay F. Künzler, Gary D. Friends, Daniel M. Ammon, Joseph A. McGee, Michael G. Gartley
  • Lens with colored portion and coated surface
    Publication number: 20040001181
    Abstract: A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different than the lens-forming polymer. In the case of a cosmetic contact lens, the colorant may be applied in an annular ring pattern corresponding to an iris, so that the colorant pattern masks and changes the apparent color of the natural iris when the contact lens is worn.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 1, 2004
    Inventors: Jay F. Kunzler, Gary D. Friends, Daniel M. Ammon, Joseph A. McGee, Michael G. Gartley
  • Wettable silicone hydrogel compositions and methods for their manufacture
    Patent number: 5352714
    Abstract: Improved silicone-containing hydrogels are disclosed with enhanced wettability comprising a silicone-containing monomer, hydrophilic monomers, and a relatively non-polar ring-containing monomer able to be converted to a highly polar amino acid upon hydration.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: October 4, 1994
    Assignee: Bausch & Lomb Incorporated
    Inventors: Yu-Chin Lai, Gary D. Friends, Paul L. Valint, Jr.
  • Polymer compositions for contact lenses
    Patent number: 5270418
    Abstract: Branched cycloalkyl methacrylate monomers, such as t-butylhydroxycyclohexyl methacrylate, are polymerized with hydrophilic monomers and crosslinking agents to produce compositions for shaped biomedical devices, including soft contact lenses. Such copolymers have high oxygen permeability and good mechanical properties.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: December 14, 1993
    Assignee: Bausch & Lomb Incorporated
    Inventors: Jay F. Kunzler, Gary D. Friends
  • Polymer compositions for contact lenses
    Patent number: 5236969
    Abstract: Branched alkylhydroxycycloalkyl methacrylate monomers, such as t-butylhydroxycyclohexyl methacrylate, are polymerized with hydrophilic monomers and crosslinking agents to produce compositions for shaped biomedical devices, including soft contact lenses. Such copolymers have high oxygen permeability and good mechanical properties.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: August 17, 1993
    Assignee: Bausch & Lomb Incorporated
    Inventors: Jay F. Kunzler, Gary D. Friends
  • Polymer compositions for contact lenses
    Patent number: 5006622
    Abstract: Branched alkylhydroxycycloalkyl methacrylate monomers, such as t-butylhydroxycyclohexyl methacrylate, are polymerized with hydrophilic monomers and crosslinking agents to produce compositions for shaped biomedical devices, including soft contact lenses. Such copolymers have high oxygen permeability and good mechanical properties.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: April 9, 1991
    Assignee: Bausch & Lomb Incorporated
    Inventors: Jay F. Kunzler, Gary D. Friends
  • Polymeric materials with high oxygen permeability and low protein substantivity
    Patent number: 4810764
    Abstract: A fluorosilicone based polymeric material with a fluorinated methacrylate functional crosslinker and an internal wetting agent.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: March 7, 1989
    Assignee: Bausch & Lomb Incorporated
    Inventors: Gary D. Friends, Jay F. Kunzler
  • Alpha, beta-unsaturated carbonyl modified amino acid monomer and polymers for biomedical uses
    Patent number: 4663409
    Abstract: Inclusion of carbonyl modified amino acid monomers in polymeric compositions for biomedical applications, including contact lenses, increases the water content and oxygen permeability of the polymer without significant changes in other desirable properties of the polymer.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: May 5, 1987
    Assignee: Bausch & Lomb Incorporated
    Inventors: Gary D. Friends, Richard C. Chromecek, Raymond A. Yourd, III
  • Polysiloxane composition with improved surface wetting characteristics and biomedical devices made thereof
    Patent number: 4652622
    Abstract: The surface wetting characteristics of polysiloxanes prepared from monomeric polysiloxanes endcapped with activated unsaturated groups and modulus modifiers are improved by the inclusion of small amounts of an N-alkenoyl trialkylsilyl aminate. The improved polymeric compositions can be used to form hard, gas permeable contact lenses and other biomedical devices.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: March 24, 1987
    Assignee: Bausch & Lomb Incorporated
    Inventors: Gary D. Friends, John B. Melpolder, Jay F. Kunzler, Joon S. Park
  • Polysiloxane composition with improved surface wetting characteristics and biomedical devices made thereof
    Patent number: 4495361
    Abstract: The surface wetting characteristics of polysiloxanes prepared from monomeric polysiloxanes endcapped with activated unsaturated groups and modulus modifiers are improved by the inclusion of small amounts of an N-alkenoyl trialkylsilyl aminate. The improved polymeric compositions can be used to form hard, gas permeable contact lenses and other biomedical devices.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: January 22, 1985
    Assignee: Bausch & Lomb Incorporated
    Inventors: Gary D. Friends, John B. Melpolder, Jay F. Kunzler, Joon S. Park
  • Low N-vinyl lactam content based biomedical devices
    Patent number: 4440919
    Abstract: Low N-vinyl lactam content copolymers are cross-linked with resonance free di(alkene tertiary amine) cyclic compounds to obtain biomedical devices, including soft contact lenses, which have good oxygen permeability and mechanical properties.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: April 3, 1984
    Assignee: Bausch & Lomb Incorporated
    Inventors: Richard C. Chromecek, Gary D. Friends, Lawrence Y. Wissman, Raymond A. Yourd, III
  • N-Vinyl lactam based biomedical devices
    Patent number: 4436887
    Abstract: N-vinyl lactam monomers and comonomers are cross-linked with resonance free di(alkene tertiary amine) cyclic compounds to obtain biomedical devices, including contact lenses, which have high oxygen permeability and good mechanical properties.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: March 13, 1984
    Assignee: Bausch & Lomb Incorporated
    Inventors: Richard C. Chromecek, Gary D. Friends, Lawrence Y. Wissman, Raymond A. Yourd, III
  • Polysiloxane with polycyclic modifier composition and biomedical devices
    Patent number: 4355147
    Abstract: Monomeric polysiloxanes endcapped with activated unsaturated groups are copolymerized with polycyclic modulus modifiers and tear film stabilizers to form hard, gas permeable, polysiloxane contact lenses and other biomedical devices.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: October 19, 1982
    Assignee: Bausch & Lomb Incorporated
    Inventors: William G. Deichert, Gary D. Friends, John B. Melpolder, Joon S. Park
  • Polysiloxane composition and biomedical devices
    Patent number: 4341889
    Abstract: Monomeric polysiloxanes endcapped with activated unsaturated groups are copolymerized with a modulus modifier and tear film stabilizers to form hard, gas permeable, polysiloxane contact lenses and other biomedical devices.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: July 27, 1982
    Assignee: Bausch & Lomb Incorporated
    Inventors: William G. Deichert, Gary D. Friends, John B. Melpolder, Joon S. Park
  • Polysiloxane with cycloalkyl modifier composition and biomedical devices
    Patent number: 4327203
    Abstract: Monomeric polysiloxanes endcapped with activated unsaturated groups are copolymerized with cycloalkyl modulus modifiers and tear film stabilizers to form hard, gas permeable, polysiloxane contact lenses and other biomedical devices.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: April 27, 1982
    Assignee: Bausch & Lomb Incorporated
    Inventors: William G. Deichert, Gary D. Friends, John B. Melpolder, Joon S. Park
  • Contact lens made from polymers of polysiloxane and polycyclic esters of acrylic acid or methacrylic acid
    Patent number: 4254248
    Abstract: Monomeric polysiloxanes end-capped with activated unsaturated groups polymerized with a comonomer comprising a polycyclic ester of acrylic acid or methacrylic acid to form a soft contact lens is disclosed. These instant polysiloxane copolymer contact lenses have unexpectedly high tear strengths and unexpectedly high modulus of elasticity.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: March 3, 1981
    Assignee: Bausch & Lomb Incorporated
    Inventors: Gary D. Friends, Martin F. VanBuren