Patents by Inventor Charlie Chen

Charlie Chen 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).

  • Patent number: 8865929
    Abstract: A method for preparing a polymerizable monomer-dye compound is provided in which a monomer, a reactive dye, and base are combined under substantially anhydrous reaction conditions to form the polymerizable monomer-dye compound, wherein the monomer comprises a pendant reactive group that covalently links to the reactive dye to form the monomer-dye compound.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: October 21, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Yuan Xu, Charlie Chen, Charles A. Francis, Shane Mao, Hong Xue, Xining Zhang
  • Publication number: 20140309264
    Abstract: The present invention relates to compounds of the formula I, wherein A, Y, Z, R3 to R6, R20 to R22 and R50 have the meanings indicated in the claims, which are valuable pharmaceutical active compounds. Specifically, they are inhibitors of the endothelial differentiation gene receptor 2 (Edg-2, EDG2), which is activated by lysophosphatidic acid (LPA) and is also termed as LPA1 receptor, and are useful for the treatment of diseases such as atherosclerosis, myocardial infarction and heart failure, for example. The invention furthermore relates to processes for the preparation of the compounds of the formula I, their use and pharmaceutical compositions comprising them.
    Type: Application
    Filed: June 25, 2014
    Publication date: October 16, 2014
    Inventors: Matthias SCHAEFER, Josef PERNERSTORFER, Dieter KADEREIT, Hartmut STROBEL, Werngard CZECHTIZKY, L. Charlie CHEN, Alena SAFAROVA, Aleksandra WEICHSEL, Marcel PATEK
  • Patent number: 8820928
    Abstract: Silicone hydrogel contact lenses are produced without using volatile organic solvents to extract materials from the polymerized contact lens bodies, and instead are washed with aqueous liquids. The silicone hydrogel contact lenses so produced have ophthalmically wettable lens surfaces such that less than five percent of a batch of twenty or more such silicone hydrogel contact lenses have visually identifiable non-wetting spots when the contact lenses are located on eyes of subjects.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: September 2, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Arthur Back, David Robert Morsley, Richard Rogers, Sarah Almond, Charlie Chen, Yuwen Liu, Charles A. Francis, Ye Hong
  • Patent number: 8802720
    Abstract: The present invention relates to compounds of the formula I, wherein A, Y, Z, R3 to R6, R20 to R22 and R50 have the meanings indicated in the claims, which are valuable pharmaceutical active compounds. Specifically, they are inhibitors of the endothelial differentiation gene receptor 2 (Edg-2, EDG2), which is activated by lysophosphatidic acid (LPA) and is also termed as LPA1 receptor, and are useful for the treatment of diseases such as atherosclerosis, myocardial infarction and heart failure, for example. The invention furthermore relates to processes for the preparation of the compounds of the formula I, their use and pharmaceutical compositions comprising them.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: August 12, 2014
    Assignee: Sanofi
    Inventors: Matthias Schaefer, Josef Pernerstorfer, Dieter Kadereit, Hartmut Strobel, Werngard Czechtizky, L. Charlie Chen, Alena Safarova, Aleksandra Weichsel, Marcel Patek
  • Publication number: 20140200287
    Abstract: A method for preparing a polymerizable monomer-dye compound is provided in which a monomer, a reactive dye, and base are combined under substantially anhydrous reaction conditions to form the polymerizable monomer-dye compound, wherein the monomer comprises a pendant reactive group that covalently links to the reactive dye to form the monomer-dye compound.
    Type: Application
    Filed: July 17, 2012
    Publication date: July 17, 2014
    Inventors: Yuan Xu, Charlie Chen, Charles A. Francis, Shane Mao, Hong Xue, Xining Zhang
  • Publication number: 20140183767
    Abstract: 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: Application
    Filed: October 7, 2013
    Publication date: July 3, 2014
    Applicant: CooperVision International Holding Company, LP
    Inventors: Ye Hong, Charlie Chen, Nick Manesis
  • Publication number: 20140178077
    Abstract: A system for transporting a plurality of digital data streams over an optical fiber can include a plurality of upstream quadrature amplitude modulation (QAM) modems. Each QAM modem encodes a digital stream onto a carrier signal by modulating both the amplitude and the phase of the carrier signal. Each QAM modem also up-shifts the signal frequency, with each up-shifted signal having a frequency within a single sub-octave frequency band to suppress composite second order distortions that can occur during optical transport. The QAM signals are combined and converted to an optical signal that is transmitted over an optical fiber to a receiver. To convert the signal, a voltage source is connected with an electro-absorption modulator to provide a bias voltage for altering an optical power of the optical signal with a DC offset. The DC offset minimizes third order distortions of signals transmitted on the fiber optic.
    Type: Application
    Filed: October 31, 2013
    Publication date: June 26, 2014
    Applicant: Titan Photonics, Inc.
    Inventors: Chen-Kuo Sun, Charlie Chen, Eric Liu
  • Publication number: 20140131227
    Abstract: 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: Application
    Filed: January 20, 2014
    Publication date: May 15, 2014
    Applicant: CooperVision International Holding Company, LP
    Inventors: Guigui Wang, Yun Zhang, Yuwen Liu, Ye Hong, Charlie Chen, Peter Zhu
  • Publication number: 20140066540
    Abstract: 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: Application
    Filed: August 27, 2013
    Publication date: March 6, 2014
    Applicant: CooperVision International Holding Company, LP
    Inventors: Hiroyuki Ueyama, Charlie Chen, Yuan Xu, Yuwen Liu, Ying Zheng, Paul Richardson, Prasad Dande
  • Publication number: 20140056597
    Abstract: A system and method for transmitting telecommunication signals through a fiber optic, with suppression of second and third order distortions, requires a signal processor for generating a sub-octave broadband signal. An Electro-Absorption Modulator (EAM) is provided to modulate the sub-octave broadband signal into an optical signal ?. And, a DC offset voltage is used to alter optical output power in the optical signal ?. The sub-octave broadband transmission then minimizes second order distortions of the optical signal ?, and the DC offset minimizes third order distortions when the optical signal ? is transmitted on the fiber optic.
    Type: Application
    Filed: October 31, 2013
    Publication date: February 27, 2014
    Applicant: Titan Photonics, Inc.
    Inventors: Chen-Kuo Sun, Charlie Chen, Eric Liu
  • Patent number: 8658747
    Abstract: 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: Grant
    Filed: May 31, 2013
    Date of Patent: February 25, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Yuwen Liu, Charlie Chen, Charles A. Francis, Junhao Ge, Yuan Xu, Li Yao, Arthur Back, Ying Zheng
  • Patent number: 8658748
    Abstract: 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: Grant
    Filed: May 31, 2013
    Date of Patent: February 25, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Ronghua Liu, Xinfeng Shi, Yuwen Liu, Charlie Chen, Ye Hong, Charles A. Francis, Li Yao, Arthur Back, Ying Zheng
  • Publication number: 20140049746
    Abstract: Silicone hydrogel contact lenses are formed from the reaction product of a polymerizable composition comprising at least one acrylate-containing siloxane monomer, at least one hydrophilic vinyl-containing monomer, and at least one vinyl-containing cross-linking agent. The contact lenses have ophthalmically-acceptable ionoflux values and surface wettability, and can be manufactured without the use of volatile organic solvents.
    Type: Application
    Filed: February 23, 2012
    Publication date: February 20, 2014
    Inventors: Yuwen Liu, Junhao Ge, Charlie Chen, Yuan Xu, Li Yao, Arthur Back, Charles A. Francis
  • Patent number: 8646907
    Abstract: 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: Grant
    Filed: September 21, 2010
    Date of Patent: February 11, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Yun Zhang, Charlie Chen, Peter Zhu, Ying Ye, Hongjin Qiu
  • Patent number: 8642677
    Abstract: 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: Grant
    Filed: February 24, 2012
    Date of Patent: February 4, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Guigui Wang, Yun Zhang, Yuwen Liu, Ye Hong, Charlie Chen, Peter Zhu
  • Publication number: 20140024738
    Abstract: 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: Application
    Filed: February 23, 2012
    Publication date: January 23, 2014
    Applicant: CooperVision International Holding Company, LP
    Inventors: Charlie Chen, Yuwen Liu, Yuan Xu, Ying Zheng, Junhao Ge, Li Yao, Arthur Back
  • Publication number: 20140022506
    Abstract: Silicone hydrogel contact lenses are formed from the reaction product of a polymerizable composition comprising at least one acrylate-containing siloxane monomer, at least one hydrophilic vinyl-containing monomer, and at least one vinyl-containing cross-linking agent, wherein the polymerizable composition has a molar ratio of total amount of hydrophilic vinyl-containing monomer to total amount of acrylate-containing siloxane monomer of from 5:1 to 30:1, respectively. The silicone hydrogel contact lenses have good manufacturing processability, can be manufactured without the use of alcohol solvents, and have excellent surface wettability.
    Type: Application
    Filed: February 23, 2012
    Publication date: January 23, 2014
    Applicant: COOPER VISION INTERNATIONAL HOLDING COMPANY ,LP
    Inventors: Ye Hong, Li Yao, Yuwen Liu, Charlie Chen, Arthur Back
  • Publication number: 20140016085
    Abstract: 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: Application
    Filed: February 23, 2012
    Publication date: January 16, 2014
    Applicant: CooperVision International Holding Company, LP
    Inventors: Junhao Ge, Yuwen Liu, Charlie Chen, Yuan Xu, Ye Hong, Hongjin Qiu
  • Publication number: 20140018465
    Abstract: 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: Application
    Filed: February 23, 2012
    Publication date: January 16, 2014
    Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LP
    Inventors: Yuwen Liu, Charlie Chen, Ye Hong, Charles A. Francis, Li Yao, Arthur Back
  • Publication number: 20140016086
    Abstract: Silicone hydrogel contact lenses that are derived from a polymerizable composition including a first siloxane monomer represented by formula (3): wherein m of formula (3) represents one integer from 3 to 10, n of formula (3) represents one integer from 1 to 10, R1 of formula (3) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (3) is independently either a hydrogen atom or a methyl group; and at least one vinyl ether-containing cross-linking agent are described. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described. In one example, the batches of silicone hydrogel contact lenses are dimensionally stable, and the method of making is a method of making dimensionally stable silicone hydrogel contact lenses.
    Type: Application
    Filed: February 23, 2012
    Publication date: January 16, 2014
    Inventors: Yuwen Liu, Ye Hong, Junhao Ge, Yuan Xu, Charlie Chen, Charles A. Francis, Li Yao, Arthur Back