Patents by Inventor Albert R. Leboeuf
Albert R. Leboeuf 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: 6210438Abstract: Bicomposite intraocular lenses having an anterior surface material different from a posterior surface material are disclosed. The posterior surface material reduces the risk of posterior capsule opacification.Type: GrantFiled: April 1, 1999Date of Patent: April 3, 2001Assignee: Alcon Laboratories, Inc.Inventors: John W. Sheets, Jr., Albert R. Leboeuf, Anilbhai S. Patel, Mutlu Karakelle, Stephen J. Van Noy
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Patent number: 6187042Abstract: Intraocular lens coating compositions for reducing the risk of posterior capsule opacification are disclosed. The coating materials, which differ from the substrate material, consist essentially of at least two aryl acrylic hydrophobic monomers of the formula wherein: X is H or CH3; m is 0-10; Y is nothing, O, S, or NR wherein R is H, CH3, CnH2n+1 (n=1−10) iso OC3H7, C6H5, or CH2C6H5; Ar is any aromatic ring which can be unsubstituted or substituted with CH3, C2H5, n-C3H7, iso-C3H7, OCH3, C6H11, Cl, Br, C6H5, or CH2C6H5.Type: GrantFiled: April 1, 1999Date of Patent: February 13, 2001Assignee: Alcon Laboratories, Inc.Inventors: John W. Sheets, Jr., Albert R. Leboeuf, Anilbhai S. Patel, Mutlu Karakelle, Stephen J. Van Noy
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Patent number: 6015842Abstract: Foldable, hydrophilic, ophthalmic device materials are cured by exposure to blue light using a benzoylphosphine oxide photoinitiator.Type: GrantFiled: August 7, 1997Date of Patent: January 18, 2000Assignee: Alcon Laboratories, Inc.Inventors: Albert R. LeBoeuf, Mutlu Karakelle
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Patent number: 5922821Abstract: High refractive index copolymers suitable for use in ophthalmic lenses, such as foldable intraocular lenses, are disclosed. The high refractive index copolymers of the present invention consist essentially of (i) one or more monomers having the structure: ##STR1## wherein: X is H or CH.sub.3 ;m is 0-10;Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 (n=1-10) isoOC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;Ar is any aromatic ring which can be unsubstituted or substituted with H,CH.sub.3, C.sub.2 H.sub.5, n--C.sub.3 H.sub.7, iso--C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, Cl, Br, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;and (ii) one or more monomers having the structure: ##STR2## wherein: X, X' is independently H or CH.sub.3 ;n, n' are independently 2 or 3;m, m' are independently 2-25;Ar, Ar' are independently as defined above;a is 1 or 2; andZ is C(CH.sub.3).sub.2 or S(.dbd.O).sub.2.Type: GrantFiled: August 8, 1997Date of Patent: July 13, 1999Assignee: Alcon Laboratories, Inc.Inventors: Albert R. LeBoeuf, Mutlu Karakelle
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Patent number: 5891931Abstract: Foldable, acrylic, high refractive index ophthalmic device materials containing a UV absorbing chromophore are cured by exposure to blue light using a benzoylphosphine oxide photoinitiator.Type: GrantFiled: August 7, 1997Date of Patent: April 6, 1999Assignee: Alcon Laboratories, Inc.Inventors: Albert R. Leboeuf, Mutlu Karakelle
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Patent number: 5882421Abstract: The tackiness associated with certain soft acrylic polymers can be reduced by plasma treatment of the polymer surface. This is particularly useful with regard to intraocular lenses (IOLs), especially foldable IOLs, which are made from such soft acrylic polymers.Type: GrantFiled: October 15, 1996Date of Patent: March 16, 1999Assignee: Alcon Laboratories, Inc.Inventors: Albert R. LeBoeuf, George Green, Barbara A. Piper
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Patent number: 5693095Abstract: Improved soft, foldable acrylic lens materials which are particularly suited for use as IOLs, but which are also useful as other ophthalmic devices, such as contact lenses, keratoprostheses, and corneal rings or inlays, are disclosed. These materials contain only two principal components: one aryl acrylic hydrophobic monomer and one hydrophilic monomer. The materials of the present invention are copolymers comprising at least about 90% by weight of the two principal monomeric components; provided that the amount of the hydrophilic component is not greater than that of the aryl acrylic hydrophobic component. The remainder of the material comprises up to 10% by weight of one or more additional components, such as cross-linking, UV-light absorbing, and blue-light absorbing components.The aryl acrylic hydrophobic monomers suitable for use in the materials of the present invention have the formula ##STR1## wherein: X is H or CH.sub.3 ;m is 0-6;Y is nothing, O, S, or NR, wherein R is H, CH.sub.3, C.sub.n H.sub.Type: GrantFiled: October 29, 1996Date of Patent: December 2, 1997Assignee: Alcon Laboratories, Inc.Inventors: Charles Freeman, David L. Jinkerson, Mutlu Karakelle, Albert R. LeBoeuf
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Patent number: 5603774Abstract: The tackiness associated with certain soft acrylic polymers can be reduced by plasma treatment of the polymer surface. This is particularly useful with regard to intraocular lenses (IOLs), especially foldable IOLs, which are made from such soft acrylic polymers.Type: GrantFiled: December 11, 1995Date of Patent: February 18, 1997Assignee: Alcon Laboratories, Inc.Inventors: Albert R. LeBoeuf, George Green, Barbara A. Piper
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Patent number: 5433746Abstract: High refractive index copolymers comprised of monomers having the formula: ##STR1## wherein X is H or CH.sub.3 ;m is 0-10;Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 (n=1-10) iso OC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;Ar is an aromatic ring which is unsubstituted or substituted with H, CH.sub.3, C.sub.2 H.sub.5, n--C.sub.3 H.sub.7, iso--C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, Cl Br, C.sub.6 H.sub.5 or CH.sub.2 C.sub.6 H.sub.5 ; and n is 1-5;a cross linking monomer having a plurality of polymerizable ethylenically unsaturated groups are disclosed. Intraocular lenses made of the copolymers which can be inserted into an aphakic eye through a relatively small incision are also disclosed.Type: GrantFiled: November 24, 1993Date of Patent: July 18, 1995Assignee: Nestle S.A.Inventors: Farhad H. Namdaran, Albert R. LeBoeuf
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Patent number: 5403901Abstract: High refractive index copolymers comprised of monomers having the formula: ##STR1## wherein X is H or CH.sub.3 ;m is 0-10;Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 (n=1-10) iso OC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;Ar is an aromatic ring which is unsubstituted or substituted with H, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, Cl, Br, C.sub.6 H.sub.5 or CH.sub.2 C.sub.6 H.sub.5 ; and n is 1-5; anda cross linking monomer having a plurality of polymerizable ethylenically unsaturated groups are disclosed. Intraocular lenses made of the copolymers which can be inserted into an aphakic eye through a relatively small incision are also disclosed.Type: GrantFiled: November 24, 1993Date of Patent: April 4, 1995Assignee: Nestle S.A.Inventors: Farhad H. Namdaran, Albert R. LeBoeuf
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Patent number: 5290892Abstract: High refractive index copolymers comprised of monomers having the formula: ##STR1## wherein X is H or CH.sub.3 ;m is 0-10;Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 ; (n=114 10) iso OC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;Ar is an aromatic ring which is unsubstituted or substituted with H, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, Cl, Br, C.sub.6 H.sub.5 or CH.sub.2 C.sub.6 H.sub.5 ;and n is 1-5; anda cross linking monomer having a plurality of polymerizable ethylenically unsaturated groups are disclosed. Intraocular lenses made of the copolymers which can be inserted into an aphakic eye through a relatively small incision are also disclosed.Type: GrantFiled: June 14, 1993Date of Patent: March 1, 1994Assignee: Nestle S.A.Inventors: Farhad H. Namdaran, Albert R. LeBoeuf
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Patent number: 4620954Abstract: In the particular embodiment described in the specification, a contact lens hydrogel is prepared by copolymerizing 75 parts of N-vinyl pyrrolidone and 23 parts of phenyl ethyl methacrylate together with allyl methacrylate as a crosslinker, t-butyl peroctoate as a thermal initiator and 2,2-dimethoxy-2-phenylacetophenone or benzoin methyl ether as a photoinitiator. The mixture is maintained at a temperature of 5.degree. C. and protected from light prior to photopolymerization which is carried out under ultraviolet radiation. The copolymer is then post-cured thermally. Cloudy or hazy hydrogels are avoided by preventing prepolymerization of the mixture.Type: GrantFiled: June 7, 1985Date of Patent: November 4, 1986Assignee: CIBA Vision Care Corp.Inventors: Helmut Singer, Ellen Bellantoni, Albert R. LeBoeuf
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Patent number: 4396583Abstract: A container with a liquid-impervious, vapor-permeable membrane for sterilizing lenses and storing them using the buffered hydrogen peroxide saline solution. The container is also provided with catalytic means to decompose the hydrogen peroxide following termination of the sterilizing period with the membrane permitting escape of the gases produced by the decomposition while preventing passage of liquid therethrough.Type: GrantFiled: August 14, 1981Date of Patent: August 2, 1983Assignee: American Optical CorporationInventor: Albert R. LeBoeuf
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Patent number: 4294974Abstract: Homopolymers and copolymers of compounds according to the formula: ##STR1## wherein R is an alkyl having 1 to 3 carbons, a+b+c+d=e, b=O to e, c=O to e, b+c>1, d=0 to 5, e=1 to 100, and Y is an organic group containing at least one>C.dbd.C<are hydrophilic as well as exhibiting properties similar to silicone compounds. The polymers are particularly useful in contact lenses having enhanced oxygen permeability.Type: GrantFiled: December 17, 1979Date of Patent: October 13, 1981Assignee: American Optical CorporationInventor: Albert R. LeBoeuf
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Patent number: 4261875Abstract: Homopolymers and copolymers of compounds according to the formula; ##STR1## wherein R is an alkyl having 1 to 3 carbons, a+b+c+d=e, b=0 to e, c=0 to e, b+c>1, d=0 to 5, e=1 to 100, and Y is an organic group containing at least one >C=C< are hydrophilic as well as exhibiting properties similar to silicone compounds. The polymers are particularly useful in contact lenses having enhanced oxygen permeability.Type: GrantFiled: January 31, 1979Date of Patent: April 14, 1981Assignee: American Optical CorporationInventor: Albert R. LeBoeuf
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Patent number: 4246389Abstract: Acrylic siloxanes having the formula: ##STR1## where R.sub.1 is selected from the class of hydrogen or methyl groups, "a" is an integer from one to five, "b" is an integer from zero to seven, "c" is an integer from zero to two, "d" is an integer from zero to one, A is selected from the class of methyl or phenyl groups, R.sub.2 is selected from the class of methyl or phenyl groups, R.sub.3 and R.sub.4 represent either no group (cyclic ring from "c" to "d") or methyl or phenyl groups, act synergistically with vinyl pyrrolidone and hydroxy ethyl methacrylate to provide optically clear moderate water containing contact lenses of substantially increased oxygen permeability.Type: GrantFiled: June 25, 1979Date of Patent: January 20, 1981Assignee: American Optical CorporationInventor: Albert R. LeBoeuf
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Patent number: 4127638Abstract: Polymeric rods suitable for manufacturing contact lenses may be improved by casting the rod in Teflon or in a Teflon-coated tube. Contact lens materials containing NVP as a monomer are preferably cast in tubes made of Teflon or having Teflon coating on the interior surface. The rods thus cast are substantially free of strain, have a uniform diameter, a smooth, continous exterior surface and an absence of voids therein. When initial polymerization is conducted at a moderate temperature in a water bath, the mixture is polymerized homogeneously to provide superior uniformity.Type: GrantFiled: September 13, 1976Date of Patent: November 28, 1978Assignee: American Optical CorporationInventors: Patricia M. Cuffe, Albert R. LeBoeuf, Edward A. Travnicek
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Patent number: 4102567Abstract: Lens material suitable for ophthalmological use including implantation in the eye as an intraocular lens and as an ultra thin contact lens. The lenses are fabricated of polymethylmethacrylate (hereinafter PMMA) which PMMA is characterized by its very high molecular weight and almost complete freedom from strain. The PMMA may optionally be lightly cross-linked. The lens material is characterized by good machinability, color uniformity, and optical quality. It is substantially strain free and free from warpage when fabricated into extremely thin lenses.Type: GrantFiled: September 13, 1976Date of Patent: July 25, 1978Assignee: American Optical CorporationInventors: Patricia M. Cuffe, Albert R. LeBoeuf, Edward A. Travnicek
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Patent number: 4022204Abstract: A dimensionally stable, shaped eye bandage for medicament delivery comprises polymerized random graft copolymers containing (in the dry state) from 67.2% to 79.3% HEMA; from 14.25% to 35% PVP; from 0.1% to 4.04% EDMA; from 0.1% to 2.5% MA; from 0.1% to 5.0% water; from 0 to 4 ppm HQ inhibitor; and from 50 to 250 ppm MEHQ inhibitor. The eye bandage composition contains from 45% to 65% water after hydration. An improved method for shaping, polymerizing, and cutting and hydrating the eye bandage composition is provided. The polymerization is conducted using only a low temperature initiator, by de-gassing prior to polymerization to remove substantially all oxygen, and by conducting the initial polymerization reaction at from 23.degree. C to 30.degree. C for 16 to 30 hours, during which the heat of the reaction is continuously absorbed to control the reaction exotherm.Type: GrantFiled: March 1, 1976Date of Patent: May 10, 1977Assignee: Warner-Lambert CompanyInventors: Albert R. LeBoeuf, William R. Grovesteen
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Patent number: 3971872Abstract: A process for preparing an abrasion resistant allyl diglycol carbonate lens is provided. The allyl diglycol carbonate lens prepared by the process of the invention has an abrasion resistant coating thereon comprised of a transparent base of a hydrolyzed polysilicic acid ester and polyvinyl alcohol comprising 90 to 100% hydrolyzed polyvinyl acetate.Type: GrantFiled: September 30, 1974Date of Patent: July 27, 1976Assignee: American Optical CorporationInventor: Albert R. LeBoeuf