Patents Represented by Attorney, Agent or Law Firm Richard Gearhart
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Patent number: 6634747Abstract: Contact lenses with sample indicator marks are disclosed. Also disclosed are methods of marking and use of contact lenses with indicator marks.Type: GrantFiled: June 7, 2000Date of Patent: October 21, 2003Assignee: Novartis AGInventors: Barry L. Atkins, Michael H. Quinn
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Patent number: 6614516Abstract: A system is provided for producing a high contrast image of features of an optical component. In the system of the present invention, light is focused through the optical component prior to reaching the detector of an image sensing means. In addition, a novel cuvette is provided for holding and locating an optical component in position during inspection. The cuvette comprises a bottom portion having a concave curved inner surface for utilizing the force of gravity to hold an optical component in place.Type: GrantFiled: June 26, 2001Date of Patent: September 2, 2003Assignee: Novartis AGInventors: Sheldon L. Epstein, Richard G. Gore
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Patent number: 6582631Abstract: An improved method of cast molding contact lenses, wherein a lens forming mixture is cured in the lens-shaped cavity formed between molding surfaces of a male and female mold sections, wherein the improvement comprises at least one of sections is injection molded from a metallocene-catalyzed thermoplastic polyolefin.Type: GrantFiled: November 9, 2000Date of Patent: June 24, 2003Assignee: Novartis AGInventor: Thomas Shepard
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Patent number: 6579918Abstract: The invention provides a molded ophthalmic lens having at least first and second optical components, wherein the first optical component is cast molded to encapsulate the second optical component such that the first optical component provides an optical function and the second optical component provides an additional optical function. The invention additionally provides a process for producing a molded composite ophthalmic lens.Type: GrantFiled: November 16, 2000Date of Patent: June 17, 2003Assignee: Novartis AGInventors: Richard Dale Auten, John Martin Lally, Xiaoxiao Zhang
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Patent number: 6541088Abstract: A composition which provides gas, flavor, and aroma barrier to substrates, where the composition is formed by mixing an ethylenically unsaturated acid, a bis-silane and a polyamine.Type: GrantFiled: March 3, 2000Date of Patent: April 1, 2003Assignees: EG Technology Partners, L.P., Dow Corning Corporation, Dow Corning S.A.Inventors: Imtiaz J. Rangwalla, John E. Wyman, Patrick Jacques Jean Merlin, Shrenik Mahesh Nanavati, Lisa Marie Seibel, Laurence Gallez
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Patent number: 6479587Abstract: The invention relates to novel crosslinkable prepolymers of formula (1), wherein the variables have the meanings given in the claims, to homo- or co-polymers obtainable therefrom by crosslinking and to mouldings, such as, especially, contact lenses, made from those homo- or co-polymers.Type: GrantFiled: March 16, 2000Date of Patent: November 12, 2002Assignee: Novartis AGInventors: Friedrich Stockinger, Andreas Ackermann
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Patent number: 6465056Abstract: The invention relates to a process for coating a material surface, comprising the steps of: (a) providing the material surface with polymer brushes comprising polymerization initiator radicals; and (b) graft polymerizing one or more different ethylenically unsaturated hydrophilic monomers or macromonomers onto the polymerization initiator-modified polymer brushes. The coated articles that are obtainable by the process of the invention have desirable characteristics regarding adherence to the substrate, durability, hydrophilicity, wettability, biocompatibility and permeability and are thus useful for the manufacture of biomedical articles such as ophthalmic devices.Type: GrantFiled: October 27, 2000Date of Patent: October 15, 2002Assignee: Novartis AGInventors: Peter Chabrecek, Dieter Lohmann
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Patent number: 6454800Abstract: A corneal onlay or corneal implant is disclosed which is to be placed within or onto the surface of the cornea, being a biocompatible, optically transparent, synthetic and biostable polymeric material, said material comprising a surface that supports the attachment and growth of tissue cells, and where the exterior surface of the implant onto which epithelial tissue is to be attracted and to become attached, or in the case of a corneal onlay the anterior surface of the onlay, has a topography comprising a plurality of surface indentations.Type: GrantFiled: February 12, 2001Date of Patent: September 24, 2002Assignee: Novartis AGInventors: Beatrice Ann Dalton, John Gerard Steele, Margaret Diana Macrea Evans, Janet Helen Fitton, Graham Johnson, Ilene Kay Gipson
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Patent number: 6447920Abstract: The invention relates to novel composite materials comprising (a) an inorganic or organic bulk material having covalently bound to its surface initiator moieties for radical polymerization; and (b) a hydrophilic surface coating obtainable by applying one or more different ethylenically unsaturated hydrophilic macromonomers of formula (1) as outlined in the claims to the bulk material surface provided with the initiator radicals and polymerizing said macromonomers. The composite materials of the invention have desirable characteristics regarding adherence to the substrate, durability, hydrophilicity, wettability, biocompatibility and permeability and are thus useful for the manufacture of biomedical articles such as ophthalmic devices.Type: GrantFiled: October 27, 2000Date of Patent: September 10, 2002Assignee: Novartis AGInventors: Peter Chabrecek, Jens Höpken, Dieter Lohmann
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Patent number: 6444776Abstract: The present invention relates to novel crosslinkable amphiphilic block copolymers of formula wherein the variables are as defined in the claims, a process for their preparation and their use for the manufacture of mouldings. The block copolymers of the invention are especially useful for the manufacture of ophthalmic mouldings such as in particular contact lenses.Type: GrantFiled: December 21, 1999Date of Patent: September 3, 2002Assignee: Novartis AGInventors: Troy Vernon Holland, Thomas Hirt, Jacalyn Mary Schremmer, Richard Carlton Baron, Wilson Leonard Terry, Jr., Aaldert Rens Molenberg
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Patent number: 6399171Abstract: The invention relates to a method of laminating two substrates by coating at least one side of a substrate with a laminating adhesive, bringing a coated side of said substrate into contact with a second substrate to form a three layer film, and treating said three layer film with a free radical initiator, wherein said laminating adhesive is formed by mixing an ethylenically unsaturated acid and a polyamine.Type: GrantFiled: July 15, 1999Date of Patent: June 4, 2002Assignees: Dow Corning Corporation, EG Technology Partners, L.P., UCB Films PLC, Star HouseInventors: Patrick J. Merlin, Daniel Futter, John E. Wyman, Imtiaz Rangwalla, Gary Power, Karen Branch