Patents by Inventor Guoting Qin
Guoting Qin 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: 12208159Abstract: Provided herein are fluorinated compounds having chemical structures: (I) where n is 0 or greater, or (II) where m and n are 0 or greater, or an amino acid, a soluble polymer, an oligo(ethylene glycol), a poly(ethylene glycol), or a carbohydrate each fluorinated with perfluorocarbons having the chemical structure (III) where n is 0 or greater. These fluorinated compounds are utilized in contact lenses to impart lipid-resistant, protein-resistant and biofouling-resistant properties, thus reducing discomfort and infection caused by contact lens wear without changing its transmission characteristics. Also provided is an ophthalmic drug delivery system comprising at least one of the compounds described above embedded in the contact lens and a kit to incorporate the ophthalmic into a contact lens. Methods for incorporating these compounds onto a contact lens without affecting transparency and for use in treating an ophthalmologic-associated condition are provided.Type: GrantFiled: September 20, 2022Date of Patent: January 28, 2025Assignee: University of Houston SystemInventors: Guoting Qin, Chengzhi Cai
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Publication number: 20230012411Abstract: Provided herein are fluorinated compounds having chemical structures: (I) where n is 0 or greater, or (II) where m and n are 0 or greater, or an amino acid, a soluble polymer, an oligo(ethylene glycol), a poly(ethylene glycol), or a carbohydrate each fluorinated with perfluorocarbons having the chemical structure (III) where n is 0 or greater. These fluorinated compounds are utilized in contact lenses to impart lipid-resistant, protein-resistant and biofouling-resistant properties, thus reducing discomfort and infection caused by contact lens wear without changing its transmission characteristics. Also provided is an ophthalmic drug delivery system comprising at least one of the compounds described above embedded in the contact lens and a kit to incorporate the ophthalmic into a contact lens. Methods for incorporating these compounds onto a contact lens without affecting transparency and for use in treating an ophthalmologic-associated condition are provided.Type: ApplicationFiled: September 20, 2022Publication date: January 12, 2023Applicant: University of Houston SystemInventors: Guoting Qin, Chengzhi Cai
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Patent number: 11529309Abstract: Provided herein are fluorinated compounds having chemical structures: (I) where n is 0 or greater, or (II) where m and n are 0 or greater, or an amino acid, a soluble polymer, an oligo(ethylene glycol), a poly(ethylene glycol), or a carbohydrate each fluorinated with perfluorocarbons having the chemical structure (III) where n is 0 or greater. These fluorinated compounds are utilized in contact lenses to impart lipid-resistant, protein-resistant and biofouling-resistant properties, thus reducing discomfort and infection caused by contact lens wear without changing its transmission characteristics. Also provided is an ophthalmic drug delivery system comprising at least one of the compounds described above embedded in the contact lens and a kit to incorporate the ophthalmic into a contact lens. Methods for incorporating these compounds onto a contact lens without affecting transparency and for use in treating an ophthalmologic-associated condition are provided.Type: GrantFiled: April 28, 2017Date of Patent: December 20, 2022Assignee: UNIVERSITY OF HOUSTON SYSTEMInventors: Guoting Qin, Chengzhi Cai
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Publication number: 20190133932Abstract: Provided herein are fluorinated compounds having chemical structures: (I) where n is 0 or greater, or (II) where m and n are 0 or greater, or an amino acid, a soluble polymer, an oligo(ethylene glycol), a poly(ethylene glycol), or a carbohydrate each fluorinated with perfluorocarbons having the chemical structure (III) where n is 0 or greater. These fluorinated compounds are utilized in contact lenses to impart lipid-resistant, protein-resistant and biofouling-resistant properties, thus reducing discomfort and infection caused by contact lens wear without changing its transmission characteristics. Also provided is an ophthalmic drug delivery system comprising at least one of the compounds described above embedded in the contact lens and a kit to incorporate the ophthalmic into a contact lens. Methods for incorporating these compounds onto a contact lens without affecting transparency and for use in treating an ophthalmologic-associated condition are provided.Type: ApplicationFiled: April 28, 2017Publication date: May 9, 2019Applicant: University of Houston SystemInventors: Guoting Qin, Chengzhi Cai
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Patent number: 9725529Abstract: According to some embodiments, the present invention provides compositions and methods for making and using multifunctional polymerized liposomes finding relevant application in medical sciences, particularly in bioimaging, diagnostics, drug delivery, and drug formulation. The compositions and methods involve lipids that are both polymerizable and have a “clickable” group that provides the ability to functionalize via a click reaction with various functional moieties useful for the above-listed applications.Type: GrantFiled: May 14, 2013Date of Patent: August 8, 2017Assignee: UNIVERSITY OF HOUSTONInventors: Chengzhi Cai, Guoting Qin, Amit Kumar
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Publication number: 20130324738Abstract: According to some embodiments, the present invention provides compositions and methods for making and using multifunctional polymerized liposomes finding relevant application in medical sciences, particularly in bioimaging, diagnostics, drug delivery, and drug formulation. The compositions and methods involve lipids that are both polymerizable and have a “clickable” group that provides the ability to functionalize via a click reaction with various functional moieties useful for the above-listed applications.Type: ApplicationFiled: May 14, 2013Publication date: December 5, 2013Applicant: University of HoustonInventors: Chengzhi Cai, Guoting Qin, Amit Kumar
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Patent number: 8506993Abstract: According to some embodiments, the present invention provides compositions and methods for making and using multifunctional polymerized liposomes finding relevant application in medical sciences, particularly in bioimaging, diagnostics, drug delivery, and drug formulation. The compositions and methods involve lipids that are both polymerizable and have a “clickable” group that provides the ability to functionalize via a click reaction with various functional moieties useful for the above-listed applications.Type: GrantFiled: August 14, 2008Date of Patent: August 13, 2013Assignee: University of HoustonInventors: Chengzhi Cai, Guoting Qin, Amit Kumar
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Publication number: 20110190623Abstract: Disclosed are thermally-activatable liposomal compositions and methods for their use in the formulation and administration of therapeutic, prophylactic, and diagnostic agents. The disclosed liposome structures are capable of carrying a variety of biologically active reagents, and permitting their controlled release in vivo by exploiting properties of their thermoregulatable lability.Type: ApplicationFiled: August 5, 2009Publication date: August 4, 2011Applicant: The Methodist Hopsital Research InstituteInventors: King Chuen Li, Zheng Li, Guoting Qin
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Patent number: 7637960Abstract: Thin and short cantilevers possess both a low force constant and a high resonance frequency, thus are highly desirable for atomic force microscope (AFM) imaging and force measurement. According to some embodiments, the invention provides small silicon (Si) cantilevers integrated with a Si tip, for example fabricated from SOI wafers that are used for reducing the variation of thickness of the cantilevers. In one example, the fabrication process provided SOI chips containing 40 silicon cantilevers integrating with an ultra-sharp Si tip. The resolution of images obtained with these tips was much higher than those obtained with the commercial tips, while the force constants were much less, that is, more suitable for imaging soft samples.Type: GrantFiled: November 15, 2006Date of Patent: December 29, 2009Assignee: University of HoustonInventors: Chengzhi Cai, Chi-Ming Yam, Guoting Qin, Steven Pei, Qingkai Yu
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Publication number: 20090162424Abstract: According to some embodiments, the present invention provides compositions and methods for making and using multifunctional polymerized liposomes finding relevant application in medical sciences, particularly in bioimaging, diagnostics, drug delivery, and drug formulation. The compositions and methods involve lipids that are both polymerizable and have a “clickable” group that provides the ability to functionalize via a click reaction with various functional moieties useful for the above-listed applications.Type: ApplicationFiled: August 14, 2008Publication date: June 25, 2009Inventors: Chengzhi Cai, Guoting Qin, Amit Kumar
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Publication number: 20070125160Abstract: Thin and short cantilevers possess both a low force constant and a high resonance frequency, thus are highly desirable for atomic force microscope (AFM) imaging and force measurement. According to some embodiments, the invention provides small silicon (Si) cantilevers integrated with a Si tip, for example fabricated from SOI wafers that are used for reducing the variation of thickness of the cantilevers. In one example, the fabrication process provided SOI chips containing 40 silicon cantilevers integrating with an ultra-sharp Si tip. The resolution of images obtained with these tips was much higher than those obtained with the commercial tips, while the force constants were much less, that is, more suitable for imaging soft samples.Type: ApplicationFiled: November 15, 2006Publication date: June 7, 2007Applicant: The University of HoustonInventors: Chengzhi Cai, Chin-Ming Yam, Guoting Qin, Steven Pei, Qingkai Yu