Patents by Inventor Walter R. Laredo

Walter R. Laredo 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: 20110046259
    Abstract: UV absorbing monomers that are particularly useful in ophthalmic devices are disclosed.
    Type: Application
    Filed: October 29, 2010
    Publication date: February 24, 2011
    Applicant: Alcon, Inc.
    Inventor: Walter R. Laredo
  • Patent number: 7884228
    Abstract: UV absorbing monomers that are particularly useful in ophthalmic devices are disclosed.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: February 8, 2011
    Assignee: Alcon, Inc.
    Inventor: Walter R. Laredo
  • Publication number: 20110003910
    Abstract: Azo compounds that block visible light are disclosed. These light absorbers are particularly suitable for use in intraocular lens materials.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 6, 2011
    Applicant: Alcon, Inc.
    Inventor: Walter R. Laredo
  • Publication number: 20110004301
    Abstract: Benzotriazole UV/Visible light-absorbing monomers are disclosed. The UV/Vis absorbers are particularly suitable for use in intraocular lens materials.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 6, 2011
    Applicant: Alcon, Inc.
    Inventor: Walter R. Laredo
  • Patent number: 7858672
    Abstract: Disclosed are soft, high refractive index, methacrylic device materials. The materials contain an ethoxylate monomer to reduce glistenings and a long-chain alkyl methacrylate monomer for softening.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: December 28, 2010
    Assignee: Alcon, Inc.
    Inventor: Walter R. Laredo
  • Publication number: 20100171923
    Abstract: Lactam polymers has been modified with sodium borohydride (NaBH4) to yield lactam polymers bearing hydroxyl functional groups. These functional groups are useful for the covalent attachment of reactive groups, fluorescent probes, antimicrobial agents, bioactive factors, and drugs. The resulting as components for medical devices, specifically ophthalmic devices and more specifically contact lenses. Hydrogels based on these polymers are also useful for biomedical applications in the areas of drug delivery, tissue engineering, and implantable devices.
    Type: Application
    Filed: March 17, 2010
    Publication date: July 8, 2010
    Inventors: Stephen C. Arnold, Walter R. Laredo
  • Publication number: 20100113641
    Abstract: Benzotriazole UV/Visible light-absorbing monomers are disclosed. The UV/Vis absorbers are particularly suitable for use in intraocular lens materials.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 6, 2010
    Applicant: Alcon, Inc.
    Inventor: Walter R. Laredo
  • Patent number: 7625581
    Abstract: The present invention includes a tissue scaffold suitable for use in repair and/or regeneration of musculoskeletal tissue when implanted in a body that includes a porous substrate made from a biodegradable, hydrophobic polymer having a modified hyaluronic acid complex dispersed on the surface of and/or, where the modified hyaluronic acid complex is insoluble in water, yet soluble in mixtures of organic and aqueous solvents in which the hydrophobic polymer is soluble.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: December 1, 2009
    Assignee: Ethicon, Inc.
    Inventors: Walter R. Laredo, Alireza Rezania, Mark C. Zimmerman
  • Patent number: 7572929
    Abstract: Dithiocarbonate-containing macromer that contain biodegradable or water-soluble segments, and polymers derived from the reaction of these dithiocarbonate-containing macromers, are disclosed. The polymers derived from these dithiocarbonate-containing macromers with biodegradable or water-soluble segments are useful in medical and pharmaceutical applications.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: August 11, 2009
    Assignee: Ethicon, Inc. - USA
    Inventors: Ankur S. Kulshrestha, Kevin Cooper, Walter R. Laredo
  • Publication number: 20090088544
    Abstract: Disclosed are soft, high refractive index, acrylic device materials. The materials contain a functionalized alkyl ethoxylate to reduce glistenings.
    Type: Application
    Filed: October 1, 2008
    Publication date: April 2, 2009
    Applicant: ALCON, INC.
    Inventor: Walter R. Laredo
  • Patent number: 7473738
    Abstract: Lactam polymers has been modified with sodium borohydride (NaBH4) to yield lactam polymers bearing hydroxyl functional groups. These functional groups are useful for the covalent attachment of reactive groups, fluorescent probes, antimicrobial agents, bioactive factors, and drugs. The resulting as components for medical devices, specifically ophthalmic devices and more specifically contact lenses. Hydrogels based on these polymers are also useful for biomedical applications in the areas of drug delivery, tissue engineering, and implantable devices.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: January 6, 2009
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Stephen C. Arnold, Walter R. Laredo
  • Publication number: 20080275156
    Abstract: The present invention relates to wettable silicone hydrogels comprising the reaction product of at least one siloxane containing component and at least one reactive, hydrophilic polymeric internal wetting agent. The present invention further relates to silicone hydrogel contact lenses comprising at least one oxygen permeable component, and an amount of reactive, hydrophilic polymeric internal wetting agent sufficient to impart wettability to said device.
    Type: Application
    Filed: June 7, 2007
    Publication date: November 6, 2008
    Inventors: Walter R. Laredo, Stephen C. Arnold, Kevin McCabe, Susan Orr, Azaam Alli
  • Publication number: 20070299210
    Abstract: Crosslinked lactam polymers are disclosed. Specifically, lactam polymers having pendant acrylate groups are crosslinked via a Michael addition type acrylate reactant. The crosslinked lactam polymers are useful in medical and pharmaceutical applications.
    Type: Application
    Filed: June 22, 2006
    Publication date: December 27, 2007
    Inventors: Ankur S. Kulshrestha, Kevin Cooper, Walter R. Laredo
  • Patent number: 7249848
    Abstract: The present invention relates to wettable silicone hydrogels comprising the reaction product of at least one siloxane containing component and at least one reactive, hydrophilic polymeric internal wetting agent. The present invention further relates to silicone hydrogel contact lenses comprising at least one oxygen permeable component, and an amount of reactive, hydrophilic polymeric internal wetting agent sufficient to impart wettability to said device.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 31, 2007
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Walter R. Laredo, Stephen C. Arnold, Kevin McCabe, Susan Orr, Azaam Alli
  • Patent number: 7247692
    Abstract: This invention relates to wettable biomedical devices comprising amphiphilic block copolymers. The amphiphilic block copolymers are useful as internal wetting agents for biomedical applications, such as implantable devices, ophthalmic devices and in one embodiment, contact lenses.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 24, 2007
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventor: Walter R. Laredo
  • Patent number: 7091191
    Abstract: The present invention includes hyaluronic acid complexes of a monovalent alkali metal salt of hyaluronic acid and a tetra alkyl ammonium halide that are suitable for incorporation with tissue scaffolds that are suitable for use in repair and/or regeneration of muscoloskeletal tissue and that include a biodegradable, porous substrate made from a biodegradable, hydrophobic polymer, where the hyaluronic acid complex is substantially insoluble in water at room temperature, yet soluble in mixtures of organic and aqueous solvents in which the selected hydrophobic polymer is soluble.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: August 15, 2006
    Assignee: Ethicon, Inc.
    Inventors: Walter R. Laredo, Alireza Rezania
  • Patent number: 6482910
    Abstract: A polymer composition comprising a polynorbonene backbone and pendant cyclotriphosphazene groups has been developed. The pendant cyclotriphosphazene group can have various substituents such as C1-C10 alkyl, C1-C10 haloalkyl, C3-C6 cycloalkyl, phenyl, substituted phenyl, aryl, —(CH2CH2OCH2CH2)nOCH3 in which n is a positive integer, aminoalkyl, alkoxyalkyl, phenoxyalkyl, aryloxyalkyl and amidoalkyl. The polynorbonene backbone can have substituents such as H, CH3, X which is a halo group, and C2-C6 alkyl, C3-C6 cycloalkyl, C2-C6 alkoxy, phenoxy, and aryloxy. In a preferred embodiment, the pendant triphosphazene group can have either —CH2CF3, phenyl, 4-ethylcarboxylatophenyl, —CH2CH3, or —CH2CH2OCH2CH2OCH3 while the polynorbonene backbone can have H and low alkyl groups. The polyphosphazene compositions can be prepared readily via ring-opening-metathesis-polymerization of an olefin having norbornene structure with pendant cyclotriphosphazene groups.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: November 19, 2002
    Assignee: The Penn State Research Foundation
    Inventors: Harry R. Allcock, Walter R. Laredo
  • Patent number: 6392008
    Abstract: Compositions of polyphosphazene-containing polymers and methods of preparation thereof are provided. The disclosed compositions encompass telechelic functionalized polyphosphazenes and a variety of block and graft polyphosphazene-polystyrene, polyphosphazene-polysiloxane, and polyphosphazene-ROMP of norbornene copolymers. Methods for the preparation of such compositions generally involve generation of a polydichlorophosphazene species, attachment of a function group to the resultant polyphosphazene compound, and coupling the functionalized polyphosphazene with a corresponding organic or inorganic polymers or polymerizing the functionalized polyphosphazene with corresponding organic molecules.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: May 21, 2002
    Assignee: The Penn State Research Foundation
    Inventors: Harry R. Allcock, Robbyn Prange, Christine R. deDenus, James M. Nelson, Chester A. Crane, Walter R. Laredo, Scott D. Reeves