Patents Assigned to CooperVision International Holding Company, LP
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Publication number: 20140160425Abstract: Method and apparatus for manufacturing a contact lens comprising: dispensing a plurality of separate portions (24) of a liquid composition onto a contact lens mold section (12, 16), each separate portion of the liquid composition having a volume of less than about 1000 nano-liters.Type: ApplicationFiled: November 6, 2012Publication date: June 12, 2014Applicant: CooperVision International Holding Company, LPInventor: Hayden Atkinson
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Publication number: 20140131227Abstract: Hydrogel contact lenses that are derived from a polymerizable composition including at least one hydrophilic monomer and at least one phosphine-containing component are described. The hydrogel of the contact lenses can be a silicone hydrogel or a non-silicone hydrogel. Use of polymerizable compositions comprising a phosphine-containing component can be cured under both inert and air atmospheres, and can be used to form hydrogel contact lenses having improved shape retention properties, having improved resistance to discoloration. Batches of hydrogel contact lenses and methods of making hydrogel contact lenses are also described.Type: ApplicationFiled: January 20, 2014Publication date: May 15, 2014Applicant: CooperVision International Holding Company, LPInventors: Guigui Wang, Yun Zhang, Yuwen Liu, Ye Hong, Charlie Chen, Peter Zhu
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Patent number: 8696118Abstract: Methods of making or providing ophthalmic lenses include using accommodative error measurements in the design or selection of one or more ophthalmic lenses. In some examples, the ophthalmic lenses are contact lenses.Type: GrantFiled: May 3, 2010Date of Patent: April 15, 2014Assignee: CooperVision International Holding Company, LPInventor: Arthur Back
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Patent number: 8681403Abstract: A color reference guide is provided for ensuring consistency among color-printed products. The guide can include a plurality of calibration pages and each calibration page can include a calibration bar and a color logo. The calibration bar can be the same on each calibration page and the color logo can be different on each calibration page. A method of providing consistency among color-printed products is also provided and involves comparing a printed logo to a corresponding color logo in the color reference guide. The color reference guide can be used in a variety of printing processes, for example, in a CMYK four-color printing process or in a G7 color printing process. The color reference guide and method are also useful in calibrating a color printer.Type: GrantFiled: September 28, 2012Date of Patent: March 25, 2014Assignee: CooperVision International Holding Company, LPInventor: Mark Coon
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Patent number: 8668780Abstract: Methods, devices, and systems for manufacturing ophthalmic lenses are described in which lens bodies are placed in cavities of lens carriers that are fluidly connected to reservoirs, flow ducts and sub-cavity base channels that provide enhanced washing and wet processing of the lenses.Type: GrantFiled: December 1, 2010Date of Patent: March 11, 2014Assignee: Coopervision International Holding Company, LPInventors: Stephen English, Kevin Aldridge
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Publication number: 20140066540Abstract: Optically clear silicone hydrogel contact lenses are described that comprise a polymeric lens body that is the reaction product of a polymerizable composition comprising at least 25 wt. % of at least one hydroxyalkyl methacrylate; and at least 20 wt. % of at least one HEMA-compatible bifunctional polysiloxane comprising at least 6 siloxane groups and having an HLB value of at least 5 and/or a hydroxyl group content of at least 1 wt. %.Type: ApplicationFiled: August 27, 2013Publication date: March 6, 2014Applicant: CooperVision International Holding Company, LPInventors: Hiroyuki Ueyama, Charlie Chen, Yuan Xu, Yuwen Liu, Ying Zheng, Paul Richardson, Prasad Dande
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Patent number: 8658747Abstract: Ophthalmically acceptably wettable silicone hydrogel contact lenses are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group, the first siloxane monomer having a number average molecular weight of from 400 daltons to 700 daltons; and a second siloxane monomer having a number average molecular weight greater than 7,000 daltons; wherein a total amount of siloxane monomers present in the polymerizable composition is from 30 unit parts to 50 unit parts; the lenses also include units derived from at least one hydrophilic amide monomer having one N-vinyl group that is present in the polymerizable composition in an amount from 30 to 60 unit parts.Type: GrantFiled: May 31, 2013Date of Patent: February 25, 2014Assignee: CooperVision International Holding Company, LPInventors: Yuwen Liu, Charlie Chen, Charles A. Francis, Junhao Ge, Yuan Xu, Li Yao, Arthur Back, Ying Zheng
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Patent number: 8658748Abstract: Silicone hydrogel contact lenses having ophthalmically acceptable levels of energy loss are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group; the lenses also include units derived from a second siloxane monomer which is a dual-end methacrylate end-capped polydimethylsiloxane having a number average molecular weight of at least 7,000 daltons. The average energy loss of the silicone hydrogel contact lenses is from about 30% to about 45% when the lenses are fully hydrated. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.Type: GrantFiled: May 31, 2013Date of Patent: February 25, 2014Assignee: CooperVision International Holding Company, LPInventors: Ronghua Liu, Xinfeng Shi, Yuwen Liu, Charlie Chen, Ye Hong, Charles A. Francis, Li Yao, Arthur Back, Ying Zheng
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Patent number: 8646907Abstract: A lens body comprising at least one form of boronic acid, boronic ester or boronic anhydride is provided. The lens body is contacted with a solution comprising at least one form of TRIS. A contact lens package including the contact lens, and methods of producing and using the contact lens, are also provided.Type: GrantFiled: September 21, 2010Date of Patent: February 11, 2014Assignee: CooperVision International Holding Company, LPInventors: Yun Zhang, Charlie Chen, Peter Zhu, Ying Ye, Hongjin Qiu
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Patent number: 8642677Abstract: Hydrogel contact lenses that are derived from a polymerizable composition including at least one hydrophilic monomer and at least one phosphine-containing component are described. The hydrogel of the contact lenses can be a silicone hydrogel or a non-silicone hydrogel. Use of polymerizable compositions comprising a phosphine-containing component can be cured under both inert and air atmospheres, and can be used to form hydrogel contact lenses having improved shape retention properties, having improved resistance to discoloration. Batches of hydrogel contact lenses and methods of making hydrogel contact lenses are also described.Type: GrantFiled: February 24, 2012Date of Patent: February 4, 2014Assignee: CooperVision International Holding Company, LPInventors: Guigui Wang, Yun Zhang, Yuwen Liu, Ye Hong, Charlie Chen, Peter Zhu
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Patent number: 8637621Abstract: A hydrogel soft contact lens which is superior in extended-wearability, lens movement, wear comfort, and which does not adhere to a cornea when worn is provided. The lens provided can be a silicone hydrogel contact lens which contains units of hydrophilic siloxane monomers and amide-group-containing monomers having an N-vinyl group.Type: GrantFiled: December 3, 2010Date of Patent: January 28, 2014Assignee: CooperVision International Holding Company, LPInventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa
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Publication number: 20140024738Abstract: Silicone hydrogel contact lenses are described. The lenses are derived from a polymerizable composition including 30-60 unit parts by weight of a hydrophilic monomer(s) having one N-vinyl group, 10 to 50 unit parts by weight of 2-hydroxyethyl methacrylate (HEMA), and a first siloxane monomer component comprising a siloxane monomer of formula (1) as described herein or a siloxane monomer of formula (2) as described herein or a siloxane monomer of formula (3) as described herein or any combination thereof, where the total amount of siloxane monomer(s) present in the polymerizable composition is from 15 to 40 unit parts by weight. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.Type: ApplicationFiled: February 23, 2012Publication date: January 23, 2014Applicant: CooperVision International Holding Company, LPInventors: Charlie Chen, Yuwen Liu, Yuan Xu, Ying Zheng, Junhao Ge, Li Yao, Arthur Back
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Publication number: 20140016085Abstract: Silicone hydrogel contact lenses are formed from the reaction product of a polymerizable composition comprising at least one hydrophilic vinyl amide-containing monomer, at least one acrylate-containing siloxane monomer, and at least one hydrophilic vinyl ether-containing monomer. The contact lenses have ophthalmically-acceptable surface wettability and can be manufactured without the use of volatile organic solvents.Type: ApplicationFiled: February 23, 2012Publication date: January 16, 2014Applicant: CooperVision International Holding Company, LPInventors: Junhao Ge, Yuwen Liu, Charlie Chen, Yuan Xu, Ye Hong, Hongjin Qiu
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Publication number: 20140018465Abstract: Silicone hydrogel contact lenses having a high water content are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group; the lenses also include units derived from a second siloxane monomer having a number average molecular weight of at least 7,000 daltons, and at least one vinyl-containing cross-linking agent. The lenses have average equilibrium water contents from about 30% wt/wt to about 70% wt/wt when fully hydrated. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.Type: ApplicationFiled: February 23, 2012Publication date: January 16, 2014Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LPInventors: Yuwen Liu, Charlie Chen, Ye Hong, Charles A. Francis, Li Yao, Arthur Back
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Publication number: 20140008824Abstract: A method and system for manufacturing a contact lens are disclosed involving aligning a male lens mold section and a female lens mold section. A picking head removes a male lens mold section from a male pallet for transfer to a female mold section on a female pallet. The picking head may move substantially freely in a plane perpendicular to the longitudinal axis of the picking head as the distance between the male and female mold sections decreases. Alignment, for example, substantially precise alignment between the male mold section, carried by the picking head, and the female mold section carried by the female pallet may be achieved before the male mold section comes in contact with the female mold section.Type: ApplicationFiled: July 19, 2012Publication date: January 9, 2014Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LPInventors: Xuxian Niu, Ryszard Radwanski, Henry Sarja, Eddie E. Baker, James R. Hufman, Roger R. Wenzel, Theodore V. Meigs
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Patent number: 8614261Abstract: Ophthalmically compatible contact lenses include lens bodies configured for placement on a cornea of an animal or human eye. The lens bodies are made of a hydrophilic silicon-containing polymeric material. The lens bodies have oxygen permeabilities, water content, surface wettabilities, flexibilities, and/or designs to be worn by a lens wearer even during sleep. The present lenses can be worn on a daily basis, including overnight, or can be worn for several days, such as about thirty days, without requiring removal or cleaning.Type: GrantFiled: March 26, 2012Date of Patent: December 24, 2013Assignee: CooperVision International Holding Company LPInventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa, Arthur Back
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Publication number: 20130293831Abstract: Ophthalmic lens molds made from one or more thermoplastic polymer having a low level of UV light transmittance (UV % T) ophthalmic lenses including silicone hydrogel contact lenses molded using these thermoplastic polymer having low UV % T, and methods of manufacturing ophthalmic lenses by cast molding a polymerizable composition in mold members formed of these thermoplastic polymers having low UV % T and curing the polymerizable composition using UV light are described.Type: ApplicationFiled: July 8, 2011Publication date: November 7, 2013Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LPInventors: Lee Darren Norris, Edyta S. Bialek, Sarah L. Almond, David Robert Morsley, A.K.M. Shahab Siddiqui, Richard C. Rogers, Ian Bruce, Benjamin S. Sheader
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Patent number: 8552085Abstract: Silicone hydrogel contact lenses having ophthalmically acceptable surface wettabilities are obtained from pre-extracted polymerized silicone hydrogel contact lens products having relatively large amounts of removable or extractable materials. The silicone hydrogel contact lenses can be obtained from non-polar resin based contact lens molds and without surface treatments or an interpenetrating polymeric network of a polymeric wetting agent. Related lens products, polymerizable compositions, and methods are also described.Type: GrantFiled: July 2, 2012Date of Patent: October 8, 2013Assignee: CooperVision International Holding Company, LPInventors: Ye Hong, Charlie Chen, Nick Manesis
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Publication number: 20130261216Abstract: Silicone hydrogel contact lenses having ophthalmically acceptable levels of energy loss are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group; the lenses also include units derived from a second siloxane monomer which is a dual-end methacrylate end-capped polydimethylsiloxane having a number average molecular weight of at least 7,000 daltons. The average energy loss of the silicone hydrogel contact lenses is from about 30% to about 45% when the lenses are fully hydrated. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.Type: ApplicationFiled: May 31, 2013Publication date: October 3, 2013Applicant: CooperVision International Holding Company, LPInventors: Ronghua Liu, Xinfeng Shi, Yuwen Liu, Charlie Chen, Ye Hong, Charles A. Francis, Li Yao, Arthur Back, Ying Zheng
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Patent number: 8540907Abstract: Devices, systems, and methods for producing ophthalmic lens molds and molded ophthalmic lenses are described. The present devices, systems, and methods provide venting of gases produced during injection molding of ophthalmic lens molds. With the present devices, systems, and methods, improvements in mold quality, lens quality, mold quality consistency, and lens quality consistency can be achieved compared to existing injection molding devices, systems, and methods. An optic power insert bushing is described and includes a venting system that directs gas from a first end of the bushing toward a second end of the bushing. The gas is directed between an optic power insert and an inner sidewall surface of a bushing bore in which the optic power insert is located. The bushing or bushings, and optic power inserts, can be provided as components of an ophthalmic lens mold injection system. Methods of making and using the vented bushings are also described.Type: GrantFiled: July 20, 2007Date of Patent: September 24, 2013Assignee: CooperVision International Holding Company, LPInventor: David Edwards