Patents by Inventor Stephen C. Pegram

Stephen C. Pegram 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: 20240084077
    Abstract: Described are ophthalmic devices and methods for their preparation and use. The ophthalmic device comprises at least one heterocyclic ligand complexed with a transition metal, wherein the ophthalmic device is a polymerization reaction product of a reactive mixture comprising: (a) one or more monomers suitable for making the ophthalmic device; and (b) a heterocyclic ligand-containing monomer, and wherein the ophthalmic device has a transmittance at 400 nm of 90 percent or less.
    Type: Application
    Filed: October 27, 2023
    Publication date: March 14, 2024
    Inventors: Stephen C. Pegram, Dola Sinha, Shivkumar Mahadevan
  • Publication number: 20210301088
    Abstract: Described are ophthalmic devices and methods for their preparation and use. The ophthalmic device comprises at least one heterocyclic ligand complexed with a transition metal, wherein the ophthalmic device is a polymerization reaction product of a reactive mixture comprising: (a) one or more monomers suitable for making the ophthalmic device; and (b) a heterocyclic ligand-containing monomer, and wherein the ophthalmic device has a transmittance at 400 nm of 90 percent or less.
    Type: Application
    Filed: February 8, 2021
    Publication date: September 30, 2021
    Inventors: Stephen C. Pegram, Dola Sinha, Shivkumar Mahadevan
  • Publication number: 20130083287
    Abstract: The present invention relates to a method for manufacturing a contact lens having a visible mark including the steps of (i) curing a hydrogel having reactive components including a leuco dye and a silicone component to form the contact lens and (ii) activating the leuco dye in at least a portion of said contact lens to change the color of the leuco dye to create the visible mark; wherein the leuco dye contains at least one methacrylate, acrylate, or styrene functional group, and the leuco dye polymerizes with the silicone component during the curing step.
    Type: Application
    Filed: September 18, 2012
    Publication date: April 4, 2013
    Applicant: Johnson & Johnson Vision Care, Inc.
    Inventors: Yongcheng Li, Stacey V. Maggio, Stephen C. Pegram
  • Publication number: 20130083286
    Abstract: The present invention relates to a method for manufacturing a lens having at least one visible mark including the steps of (i) manufacturing a lens containing a leuco dye and (ii) activating the leuco dye t in at least a portion of said contact lens o change the color of the leuco dye to create the visible mark.
    Type: Application
    Filed: September 18, 2012
    Publication date: April 4, 2013
    Applicant: Johnson & Johnson Vision Care, Inc.
    Inventors: Yongcheng Li, Stacey V. Maggio, Stephen C. Pegram
  • Publication number: 20110287118
    Abstract: An apparatus and method for treating an ophthalmic lens mold part. The treatment includes formation of ketones on a lens forming surface of the mold part. In some embodiments, the treatment includes exposure of the surface of the lens forming surface to ozone.
    Type: Application
    Filed: March 25, 2011
    Publication date: November 24, 2011
    Inventors: Peyton L. Hopson, Stephen C. Pegram, Nitin Nitin, Heather S. Hanson, Michael Rubal, Douglas P. Hanson
  • Publication number: 20110139995
    Abstract: Methods of detecting the discharge and uptake rates of ophthalmic lenses containing pharmaceutical agents are disclosed herein.
    Type: Application
    Filed: February 24, 2011
    Publication date: June 16, 2011
    Inventors: Stephen C. Pegram, Shivkumar Mahadevan
  • Patent number: 7918125
    Abstract: Methods of detecting the discharge and uptake rates of ophthalmic lenses containing pharmaceutical agents are disclosed herein.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: April 5, 2011
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Stephen C. Pegram, Shivkumar Mahadevan
  • Patent number: 7758332
    Abstract: The invention provides methods of manufacturing toric lenses, apparatuses useful in the method of the invention, and lenses produced according to the method in which method the position of one mold half in relation to its complementary mold half is more precisely controlled so that tilting and rotation of the mold halves in relation to each other is substantially eliminated.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: July 20, 2010
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Leslie A. Voss, Edward R. Kernick, James R. White, Stephen C. Pegram, Donnie J. Duis
  • Patent number: 7717982
    Abstract: The present invention relates to a stackable packing element for use in degassing liquid ophthalmic lens monomer and a lens resulting therefrom. One or more stackable elements can be used to form a modular degasser and implement an in-line degassing process, employing same. The stackable packing element is comprised of a body module and a removable puck component.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: May 18, 2010
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Kent A. Young, Stephen C. Pegram, Kerry T. Sanders
  • Publication number: 20090045532
    Abstract: The present invention relates to a stackable packing element for use in degassing liquid ophthalmic lens monomer and a lens resulting therefrom. One or more stackable elements can be used to form a modular degasser and implement an in-line degassing process, employing same. The stackable packing element is comprised of a body module and a removable puck component.
    Type: Application
    Filed: August 9, 2004
    Publication date: February 19, 2009
    Inventors: Kent A. Young, Stephen C. Pegram, Kerry T. Sanders
  • Publication number: 20090032988
    Abstract: This invention discloses methods and apparatus for processing s silicon ophthalmic lens. The processing includes exposing the ophthalmic lens to a solution of Tri(Propylene Glycol) Methyl Ether and decreasing the dynamic contact angle of the lens surface.
    Type: Application
    Filed: July 21, 2008
    Publication date: February 5, 2009
    Inventors: Diana ZANINI, Stephen C. Pegram, Scott L. Joslin
  • Publication number: 20080190221
    Abstract: Methods of detecting the discharge and uptake rates of ophthalmic lenses containing pharmaceutical agents are disclosed herein.
    Type: Application
    Filed: October 31, 2007
    Publication date: August 14, 2008
    Inventors: Stephen C. Pegram, Shivkumar Mahadevan
  • Publication number: 20080099658
    Abstract: The present invention includes methods and appartus for facilitating release of an ophthalmic lens from a mold part used to fashion the lens. Subsequent to formation of the lens, the lens may be adhered to the mold part and a lens swelling substance is utilized to cuase a portion of the lens to separate from the mold part and create a pathway for a hydration solution to enter between teh lens and the mold part an effect release of the lens.
    Type: Application
    Filed: October 1, 2007
    Publication date: May 1, 2008
    Inventors: Vandana Srinivas, Stephen R. Beaton, Stephen C. Pegram
  • Publication number: 20070176310
    Abstract: The invention provides methods of manufacturing toric lenses, apparatuses useful in the method of the invention, and lenses produced according to the method in which method the position of one mold half in relation to its complementary mold half is more precisely controlled so that tilting and rotation of the mold halves in relation to each other is substantially eliminated.
    Type: Application
    Filed: January 29, 2007
    Publication date: August 2, 2007
    Inventors: Leslie A. Voss, Edward R. Kernick, James R. White, Stephen C. Pegram, Donnie J. Duis
  • Patent number: 6811592
    Abstract: The invention is a stackable packing element for use in degassing liquid ophthalmic lens monomer, and to a modular degasser and process, including an in-line degassing process, employing same. The stackable packing element is comprised of a body module and a removable puck component.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: November 2, 2004
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Kent A. Young, Stephen C. Pegram, Kerry T. Sanders
  • Patent number: 6663801
    Abstract: A method and a device for removing molded soft contact lenses, high-precision intraocular lenses and the like, from the individual molds in which they are produced. Provided is an infra-red radiation or heater device constituted of silicon carbide IR-emitters, and which employs an individual infra-red emitter for each individual mold, to impart a desired thermal gradient.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: December 16, 2003
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Stephen C. Pegram, Allan W. Kimble, Leslie A. Voss, Thomas P. Bingaman, Joseph W. Ricard
  • Publication number: 20030221557
    Abstract: The invention is a stackable packing element for use in degassing liquid ophthalmic lens monomer, and to a modular degasser and process, including an in-line degassing process, employing same. The stackable packing element is comprised of a body module and a removable puck component.
    Type: Application
    Filed: February 26, 2003
    Publication date: December 4, 2003
    Inventors: Kent A. Young, Stephen C. Pegram, Kerry T. Sanders
  • Patent number: 6636812
    Abstract: An on-line sampling and analysis system and method in which a sampling line inlet pipe receives a continuous flow of a suspension or a slurry having particulates, such as grains, seed or phosphate rock, for rapid analysis of the contents therein in a flowing stream. A sample presentation area such as a window is positioned below the flow of the suspension or slurry in an assembly allowing for the depositing of a sample of solid content from the suspension or slurry which is collected for viewing by a computer controlled video camera. The camera is provided for imaging the sample of the solid content collected at the sample presentation area, and a personal computer analyzes images provided by the camera to characterize the content of the fluid media.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: October 21, 2003
    Assignee: Cargill, Incorporated
    Inventors: Stephen C. Pegram, Scott P. Klein, Christopher L. Davidson, Stanley A. Patterson, Thomas L. Coulter, John R. Schmedeman
  • Publication number: 20020185763
    Abstract: A method and a device for removing molded soft contact lenses, high-precision intraocular lenses and the like, from the individual molds in which they are produced. Provided is an infra-red radiation or heater device preferably constituted of silicon carbide IR-emitters, and which employs an individual infra-red emitter for each individual mold, to impart a desired thermal gradient. Also provided are infra-red emitters having improved reflectors.
    Type: Application
    Filed: April 5, 2002
    Publication date: December 12, 2002
    Inventors: Stephen C. Pegram, Allan W. Kimble, Leslie A. Voss, Thomas P. Bingaman, Joseph W. Ricard, Edward R. Kernick, Charles R. Hood, H. Anthony Darabi
  • Publication number: 20020145211
    Abstract: A method and a device for removing molded soft contact lenses, high-precision intraocular lenses and the like, from the individual molds in which they are produced. Provided is an infra-red radiation or heater device constituted of silicon carbide IR-emitters, and which employs an individual infra-red emitter for each individual mold, to impart a desired thermal gradient.
    Type: Application
    Filed: April 6, 2001
    Publication date: October 10, 2002
    Inventors: Stephen C. Pegram, Allan W. Kimble, Leslie A. Voss, Thomas P. Bingaman, Joseph W. Ricard