Patents by Inventor Friedrich Stockinger
Friedrich Stockinger 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).
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Patent number: 7875660Abstract: Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.Type: GrantFiled: March 17, 2010Date of Patent: January 25, 2011Assignee: Novartis AGInventors: Lynn Cook Winterton, Juergen Vogt, John Martin Lally, Friedrich Stockinger
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Publication number: 20100242409Abstract: Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.Type: ApplicationFiled: March 17, 2010Publication date: September 30, 2010Inventors: Lynn Cook Winterton, Juergen Vogt, John Martin Lally, Friedrich Stockinger
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Patent number: 7705067Abstract: Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.Type: GrantFiled: May 13, 2009Date of Patent: April 27, 2010Assignee: Novartis AGInventors: Lynn Cook Winterton, Juergen Vogt, John Martin Lally, Friedrich Stockinger
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Publication number: 20090288369Abstract: Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.Type: ApplicationFiled: May 13, 2009Publication date: November 26, 2009Inventors: Lynn Cook Winterton, Juergen Vogt, John Martin Lally, Friedrich Stockinger
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Patent number: 7566746Abstract: Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.Type: GrantFiled: October 31, 2007Date of Patent: July 28, 2009Assignee: Novartis AGInventors: Lynn Cook Winterton, Juergen Vogt, John Martin Lally, Friedrich Stockinger
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Publication number: 20080129956Abstract: Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.Type: ApplicationFiled: October 31, 2007Publication date: June 5, 2008Inventors: Lynn Cook Winterton, Juergen Vogt, John Martin Lally, Friedrich Stockinger
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Patent number: 7297725Abstract: Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.Type: GrantFiled: July 24, 2002Date of Patent: November 20, 2007Assignee: Novartis AGInventors: Lynn Cook Winterton, Juergen Vogt, John Martin Lally, Friedrich Stockinger
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Publication number: 20030065051Abstract: Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.Type: ApplicationFiled: July 24, 2002Publication date: April 3, 2003Inventors: Lynn Cook Winterton, Juergen Vogt, John Martin Lally, Friedrich Stockinger
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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: 6472489Abstract: The invention relates to novel polyallyl amine polymers having a weight average molecular weight of at least 2000 that, based on the number of amino groups of the polyallyl amine, comprises from approximately 1 to 99% of units of formula wherein R is as defined in the claims. The novel polyallyl amine polymers are useful, for example, for the surface-modification of different substrates or may be used for the manufacture of biomedical mouldings.Type: GrantFiled: November 18, 1999Date of Patent: October 29, 2002Assignee: Novartis AGInventor: Friedrich Stockinger
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Patent number: 6451871Abstract: Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.Type: GrantFiled: April 27, 2000Date of Patent: September 17, 2002Assignee: Novartis AGInventors: Lynn Cook Winterton, Juergen Vogt, John Martin Lally, Friedrich Stockinger
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Patent number: 6190603Abstract: A novel process for producing mouldings, especially contact lenses, is described, comprising the following steps: a) introducing into a mould a prepolymer containing photo crosslinkable groups that is liquid at room temperature or is readily meltable and is substantially free of solvents; b) initiating the photo cross-linking for a period of <20 minutes; c) opening the mould, so that the moulding can be removed for the mould. In accordance with the process according to the invention, it is possible especially to produce contact lenses having valuable properties.Type: GrantFiled: January 22, 1999Date of Patent: February 20, 2001Assignee: Novartis AGInventors: Bettina Steinmann, Friedrich Stockinger
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Patent number: 6162844Abstract: A method of incorporating radiation-absorbing agents (i.e., dyes) into polymeric materials. A preferred method involves crosslinking or polymerizing a polymerizable or crosslinkable material in the presence of a polymeric dye. A preferred product is a tinted contact lens comprising poly(vinyl alcohol). The methods offer advantages in reduced fabrication cycles, reduced extractables, elimination of post-polymerization activation steps, elimination of post-polymerization extraction steps and reduced scrap and costs associated with lens handling.Type: GrantFiled: December 22, 1999Date of Patent: December 19, 2000Assignee: Novartis AGInventors: John Martin Lally, Deborah Jean Mulcahy, Achim Muller, Beat Muller, Bernhard Seiferling, Friedrich Stockinger
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Patent number: 6149842Abstract: The invention relates to a process for the manufacture of tinted ophthalmic moldings comprising the steps of(a) providing a water soluble polymer precursor having crosslinkable or polymerizable groups;(b) providing a pigment dispersion comprising an inorganic or organic pigment and a dispersing agent;(c) mixing the metal phthalocyanine dye or pigment with the polymer precursor to form a tinted prepolymerization mixture,(d) dispensing the tinted prepolymerization mixture into a mold,(e) applying radiation to the tinted prepolymerization mixture in the mold, thereby crosslinking or polymerizing the polymer precursor and entrapping the dye or pigment within the polymeric network of the resultant ophthalmic molding, and(f) opening the mold so that the ophthalmic molding can be removed from the mold.According to the process, tinted ophthalmic moldings, particularly full-body tinted soft contact lenses having improved properties, are prepared with an improved efficiency.Type: GrantFiled: November 12, 1998Date of Patent: November 21, 2000Assignee: Novartis AGInventors: John Martin Lally, Friedrich Stockinger, Charlotte Lynn Cooper, Achim Muller, Deborah Jean Mulcahy, Bernhard Seiferling
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Patent number: 6149692Abstract: A method of incorporating dyes into polymeric materials. The method involved contacting a functionalized dye with a high molecular weight crosslinkable polymer precursor, dispensing the solution into a mold and applying radiation, thereby forming a molded article having dye covalently bonded to the polymer backbone. A preferred product is a visibility tinted disposable contact lens comprising poly(vinyl alcohol). Various embodiments of the innovative method offer advantages in reduced fabrication cycles, reduced extractables, elimination of post-polymerization activation steps, elimination of post-polymerization extraction steps and reduced scrap and costs associated with lens handling.Type: GrantFiled: August 27, 1998Date of Patent: November 21, 2000Assignee: Novartis AGInventors: John Martin Lally, Deborah Jean Mulcahy, Achim Muller, Beat Muller, Bernhard Seiferling, Friedrich Stockinger
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Patent number: 5807927Abstract: A process for the production of mouldings, in particular contact lenses, in which a water-soluble, crosslinkable polymer is crosslinked in solution, and mouldings, in particular contact lenses, obtainable by this process; and novel water-soluble, crosslinkable polymers which can be employed in the crosslinking process, in particular those based on polyvinyl alcohol having a molecular weight of at least about 2000 which comprises units of the formulae: XI and XII, XI and XIII or XI, XII and XIII. In said Formulae, U is (a) or --Y--NH--CO--O--Z--O--CH.dbd.CH.sub.Type: GrantFiled: September 12, 1997Date of Patent: September 15, 1998Assignee: CIBA Vision CorporationInventors: Friedrich Stockinger, Beat Muller
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Patent number: 5270435Abstract: Polyarylene ethers which, based on the total amount of the structural units present in the polyether resin, contain 2-100 mol % of a recurring structural unit of formula I ##STR1## and 0-98 mol % of a recurring structural unit of formula II wherein each a is 1 or 2, 10 to 100% of X, based on the total number of the bonds X present in the structural units of formulae I and II, are --SO.sub.2 --, and 0 to 90% of X are --CO--, and A is a group of formula IIIa-IIIg: ##STR2## wherein Y is --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --C(CF.sub.3).sub.2 --, --S--, --SO--, --SO.sub.2 --, --O-- or --CO--, and the aromatic rings in the structural units of formulae I and II are unsubstituted or substituted by one or more alkyl groups of 1 to 4 carbon atoms, have good solubility in organic solvents and are suitable preferably for modifying other plastics materials or for use as matrix resins for the production of fibrous composite structures.Type: GrantFiled: January 9, 1992Date of Patent: December 14, 1993Assignee: Ciba-Geigy CorporationInventors: Rudolf Pfaendner, Thomas Kainmuller, Kurt Hoffmann, Andreas Kramer, Friedrich Stockinger
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Patent number: 5212278Abstract: The invention relates to polyarylene ethers which contain, based on the total amount of structural elements present in the polyether resin, 5-100 mol % of a recurring structural element of the formula I ##STR1## and 0-95 mol % of a recurring structural element of the formula II ##STR2## in which X and X' independently of one another are --SO--, --SO.sub.2 -- or --CO--, one of the radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups and the remaining radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen, (C.sub.1 -C.sub.4)alkyl, phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups, and A is an aromatic radical, at least 25% of the bonds X and/or Y and/or the bridge members contained in A being --SO.sub.2 --.These industrial materials are distinguished by very good mechanical properties and good solubility.Type: GrantFiled: March 13, 1990Date of Patent: May 18, 1993Assignee: Ciba-Geigy CorporationInventors: Rudolf Pfaendner, Thomas Kainmuller, Kurt Hoffmann, Andreas Kramer, Friedrich Stockinger
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Patent number: 5126427Abstract: Polyarylene ether sulfones which have a reduced viscosity of 0.1 to 2.0 dl/g, measured at 25.degree. C. in a 1% solution in N-methylpyrrolidone (NMP), and which contain, based on the total number of structural units present in the polyarylene ether sulfone resin, 99-1 mol % of a recurring structural unit of formula I ##STR1## and 1-99 mol % of a recurring structural unit of formula II--O--Ar.sub.2 --O--Ar.sub.1 -- (II)wherein the aromatic rings in the structural unit of formula I are unsubstituted or substituted by one or more C.sub.1 -C.sub.4 alkyl groups, C.sub.1 -C.sub.4 alkoxy groups or halogen atoms, Ar.sub.1 is a radical of formula IIIa-IIIc ##STR2## wherein a is 0 or 1, ##STR3## which radical is unsubstituted or substituted by one or more C.sub.1 -C.sub.4 alkyl groups, C.sub.1 -C.sub.4 alkoxy groups or halogen atoms, and Ar.sub.2 is a radical of formula IVa-IVe ##STR4## wherein b is 0 or 1 ##STR5## wherein c is 0 or 1 ##STR6## wherein Z is --CO--, --SO.sub.Type: GrantFiled: March 6, 1991Date of Patent: June 30, 1992Assignee: Ciba-Geigy CorporationInventors: Rudolf Pfaendner, Thomas Kainmuller, Kurt Hoffmann, Friedrich Stockinger, Andreas Kramer
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Patent number: 5087688Abstract: A fibrous composite structure impregnated with a solvent-free, curable epoxy resin matrix and comprising(a) a liquid epoxy resin or a liquid mixture of epoxy resins,(b) a liquid .beta.-hydroxyamine of formula I ##STR1## wherein X is phenyl or the radical R--O--CH.sub.2 --, wherein R is an alkyl group of 4 to 20 carbons or is phenyl or phenyl which is substituted by one or more C.sub.1 -C.sub.4 alkyl groups, a liquid mixture of .beta.-hydroxyamines of formula I or a liquid mixture of one more .beta.-hydroxyamines of formula I and of a primary monomaine different from formula I or of a primary or secondary diamine, and optionally(c) a catalytically curing tertiary amine,is virtually odourless, can be stored for several days at room temperature, and has good processing properties.Type: GrantFiled: June 20, 1990Date of Patent: February 11, 1992Assignee: Ciba-Geigy CorporationInventors: Urs Gruber, Friedrich Stockinger, Elvio Manso