Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7297160 | High refractive-index, hydrophilic, arylsiloxy-containing macromonomers and polymers, and ophthalmic devices comprising such polymers Hydrophilic, arylsiloxy-containing macromonomers have at least a terminal hydrophilic group attached to an arylsiloxy group. The aryl groups attached to siloxy groups can be substituted with other hydrophilic groups. Polymers comprising such hydrophilic, arylsiloxy-... | 11/20/2007 |
| 7138132 | Hydrogel entrapping therapeutic agent and stent with coating comprising this A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by fre... | 11/21/2006 |
| 7132479 | Polymer mixtures with improved odor control The present invention relates to polymer mixtures including hydrogel-forming polymers capable of absorbing aqueous fluids and prepared by polymerization of olefinically unsaturated carboxylic acids or derivatives thereof together with copolymers of C2–C... | 11/07/2006 |
| 7067565 | Epoxy/acrylate based primer coating compositions and their use in the optical field The invention relates to primer coating compositions exhibiting very good adhesion properties on a large variety of substrates, in particular plastic substrates such as ophthalmic lenses made of organic glasses and which also impart good impact resistance properties... | 06/27/2006 |
| 7049351 | Moldings and preparation and uses thereof An ophthalmic lens made from a crosslinkable polymer containing H-active groups bonded to the oligomer or polymer backbone, some or all of whose hydrogen atoms have been substituted by radicals of a N-hydroxyalkyl (meth)acrylamide. The lens transmits at least 70% of... | 05/23/2006 |
| 7045559 | Electrically conductive adhesive hydrogels with solubilizer A composition providing electrically conductive adhesive hydrogels suitable for use as skin contact adhesives and, particularly, suitable for use as an electrical interface for disposable medical devices. The present hydrogels provide for reduced skin irritation and... | 05/16/2006 |
| 7012106 | Reinforced implantable medical devices The present invention is directed to reinforced, biocompatible, biodegradable compositions suitable for use in implantable medical devices and medical devices made at least in part from such compositions, where the compositions include a biocompatible, biodegradable... | 03/14/2006 |
| 6916857 | Hydrogel-forming system with hydrophobic and hydrophilic components A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide (e.g. dextran) containing hydroxy groups which are reacted with unsaturated group introducing compound, is con... | 07/12/2005 |
| 6905700 | Hydrogel entrapping therapeutic agent and stent with coating comprising this A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by fre... | 06/14/2005 |
| 6858680 | Shape memory polyurethane or polyurethane-urea polymers A shape memory polyurethane or polyurethane-urea polymer including a reaction product of: (A) (a) silicon-based macrodiol, silicon-based macrodiamine and/or polyether of the formula (I): A—[(CH2)m—O]n—(CH2)m | 02/22/2005 |
| 6800670 | Crosslinking of polyethylene for low wear using radiation and thermal treatments The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiati... | 10/05/2004 |
| 6737448 | High refractive index, optically clear and soft hydrophobic acrylamide copolymers High refractive index, optically clear and soft hydrophobic acrylamide copolymers and ophthalmic lenses made therefrom are provided. The copolymers are comprised of a hydrophobic acrylamide monomer of N-Benzyl-N-isopropylacrylamide and at least one monomer of an alk... | 05/18/2004 |
| 6649722 | Contact lens This invention is directed to ophthalmic materials and ophthalmic lenses that are a co-polymerization product of a (a) hydrophilic monomer with (b) a tris(siloxy)silyl group-containing monomer, (c) a wide variety of hydrophobic monomers (both aliphatic an... | 11/18/2003 |
| 6627674 | Contact lens of high water content and high water balance A contact lens of high water content and extremely high water balance made of a homopolymer or copolymer of 2,3-dihydroxypropyl methacrylate and methods of making such contact lenses, and polymers and hydrogels useful in such contact lenses.... | 09/30/2003 |
| 6596267 | Methods and compositions to prevent formation of adhesions in biological tissues The invention discloses materials that adsorb readily to the surfaces of body tissues in situ and provide a steric barrier between such tissues, so that tissue adhesions, which typically form following surgical procedures, are minimized. These materials c... | 07/22/2003 |
| 6482531 | Non-fouling, wettable coated devices A device, and its production method, the device has a substrate and a coating composition, the coating composition being formed by the gas phase or plasma polymerization of a gas comprising at least one organic compound or monomer. The polymerization is c... | 11/19/2002 |
| 6465538 | Method for polymerizing contact lenses A method for photopolymerizing a monomer mixture to form a lens involves charging to a mold a monomer mixture including lens-forming monomers, and exposing the monomer mixture in the mold to a light source including light in the visible region of the spec... | 10/15/2002 |
| 6407145 | Photocrosslinkable materials and applications The invention relates to a novel process for the manufacture of mouldings, especially contact lenses, in which a soluble prepolymer comprising crosslinkable groups is crosslinked in solution, and also to mouldings, especially contact lenses, obtainable in... | 06/18/2002 |
| 6372814 | Non-oxidizing polymeric medical implant A medical implant made of polymeric material having an increased oxidation resistance is formed by a method including the steps of placing a resin powder in a sealed container. A substantial portion of the oxygen is removed from the sealed container by ei... | 04/16/2002 |
| 6359024 | Method for polymerizing contact lenses A method for photopolymerizing a monomer mixture to form a lens involves charging to a mold a monomer mixture including lens-forming monomers, and exposing the monomer mixture in the mold to a light source including light in the visible region of the spec... | 03/19/2002 |
| 6303697 | Fabrication of biocompatible polymeric composites Composite materials formed from biocompatible polymer fibers and biodegradable polymers are disclosed. The heat treatment conditions for the reinforcing fibers are described so that the mechanical properties of the fibers can be retained during composite ... | 10/16/2001 |
| 6296867 | Therapeutic contact lens comprising living cells within a matrix A theraputic lens for removable placement onto a surface of a cornea of an eye, and methods for making and using the same. The lens has a first surface adapted for exposure to light and a second surface adapted to contact the surface of the cornea. The fi... | 10/02/2001 |
| 6254959 | Position-retaining material and method of manufacturing position-retaining device utilizing position-retaining material A position-retaining device comprises a mixture containing a predetermined amount of elastic granules and a water-curable resin having a preselected elasticity after curing sufficient for bonding the elastic granules after curing of the water-curable resi... | 07/03/2001 |
| 6245830 | Contact lens of high water content and high water balance A contact lens of high water content and extremely high water balance made of a homopolymer or copolymer of 2,3-dihydroxypropyl methacrylate and methods of making such contact lenses, and polymers and hydrogels useful in such contact lenses.... | 06/12/2001 |
| 6228900 | Crosslinking of polyethylene for low wear using radiation and thermal treatments The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with ga... | 05/08/2001 |
| 6224893 | Semi-interpenetrating or interpenetrating polymer networks for drug delivery and tissue engineering Compositions for tissue engineering and drug delivery have been developed based on solutions of two or more polymers which form semi-interpenetrating or interpenetrating polymer networks upon exposure to active species following injection at a site in a p... | 05/01/2001 |
| 6174934 | Non-oxidizing polymeric medical implant A medical implant made of polymeric material having an increased oxidation resistance is formed by a method including the step of placing a resin powder in a sealed container. A substantial portion of the oxygen is removed from the sealed container by eit... | 01/16/2001 |
| 6147135 | Fabrication of biocompatible polymeric composites Composite materials formed from biocompatible polymer fibers and biodegradable polymers are disclosed. The heat treatment conditions for the reinforcing fibers are described so that the mechanical properties of the fibers can be retained during composite ... | 11/14/2000 |
| 6077916 | Biodegradable mixtures of polyphoshazene and other polymers Biodegradable polymeric compositions are provided, wherein biodegradable polyphosphazenes are combined with at least one other polymer, either in the form of a blend, a semi-interpenetrating network (semi-IPN), or an interpenetrating network IPN. The side... | 06/20/2000 |
| 5993890 | Nonthrombogenic implant surfaces Triblock polymers comprised of polysaccharide, such as heparin or dextran, and a hydrocarbon chain, have been prepared. The triblock polymer adsorbs strongly on the surface of hydrophobic polymer substrates such as polyethylene, through hydrophobic intera... | 11/30/1999 |
| 5910537 | Biocompatible, optically transparent, ultraviolet light absorbing, polymeric material based upon collagen and method of making The present invention is ultraviolet light absorbing biocompatible polymer containing the copolymerization product of a mixture of hydrophobic and hydrophilic acrylic and/or allelic monomers, graft-polymerized with telo-collagen, where the hydrophobic mon... | 06/08/1999 |
| 5849811 | Extended wear ophthalmic lens An ophthalmic lens suited for extended-wear for periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water pe... | 12/15/1998 |
| 5849810 | Photocrosslinked polymers The invention relates to a novel process for the manufacture of mouldings, especially contact lenses, in which a soluble prepolymer comprising crosslinkable groups is crosslinked in solution, and also to mouldings, especially contact lenses, obtainable in... | 12/15/1998 |
| 5847023 | Thermal irreversible gel corneal contact lens formed in situ Balanced pH, thermo-irreversible gels comprising a polyoxyalkylene compound and an ionic polysaccharide are ideal materials for the formation of a protective contact lens over the cornea of the eye of a mammal.... | 12/08/1998 |
| 5807944 | Amphiphilic, segmented copolymer of controlled morphology and ophthalmic devices including contact lenses made therefrom The subject matter of the present invention is an amphiphilic, segmented copolymer of controlled morphology comprising at least one segment having high oxygen permeability, at least one segment having high ion and water permeability, the segments being li... | 09/15/1998 |
| 5805264 | Process for graft polymerization on surfaces of preformed substates to modify surface properties The invention relates to a process for modifying the surface characteristics of a preformed polymer substrate to impart altered properties thereto by graft polymerization on the substrate which includes: placing the polymer substrate in a plasma to form f... | 09/08/1998 |
| 5789461 | Methods of forming an extended wear ophthalmic lens having a hydrophilic surface An ophthalmic lens suited for extended-wear for periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water pe... | 08/04/1998 |
| 5789464 | Photocrosslinked polymers The invention relates to a novel process for the manufacture of mouldings, especially contact lenses, in which a soluble prepolymer comprising crosslinkable groups is crosslinked in solution, and also to mouldings, especially contact lenses, obtainable in... | 08/04/1998 |
| 5780044 | Liquid delivery compositions Improved biocompatible liquid delivery compositions, which are useful for the formation of sustained release delivery systems for active agents, are provided. The compositions include liquid formulations of a biocompatible polymer or prepolymer in combina... | 07/14/1998 |
| 5776999 | Methods of using and screening extended wear ophthalmic lenses An ophthalmic lens screening method suited for extended-wear for periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability an... | 07/07/1998 |
