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).

  • Publication number: 20230012411
    Abstract: 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: Application
    Filed: September 20, 2022
    Publication date: January 12, 2023
    Applicant: University of Houston System
    Inventors: Guoting Qin, Chengzhi Cai
  • Patent number: 11529309
    Abstract: 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: Grant
    Filed: April 28, 2017
    Date of Patent: December 20, 2022
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Guoting Qin, Chengzhi Cai
  • Publication number: 20190133932
    Abstract: 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: Application
    Filed: April 28, 2017
    Publication date: May 9, 2019
    Applicant: University of Houston System
    Inventors: Guoting Qin, Chengzhi Cai
  • Patent number: 9725529
    Abstract: 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: Grant
    Filed: May 14, 2013
    Date of Patent: August 8, 2017
    Assignee: UNIVERSITY OF HOUSTON
    Inventors: Chengzhi Cai, Guoting Qin, Amit Kumar
  • Publication number: 20130324738
    Abstract: 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: Application
    Filed: May 14, 2013
    Publication date: December 5, 2013
    Applicant: University of Houston
    Inventors: Chengzhi Cai, Guoting Qin, Amit Kumar
  • Patent number: 8506993
    Abstract: 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: Grant
    Filed: August 14, 2008
    Date of Patent: August 13, 2013
    Assignee: University of Houston
    Inventors: Chengzhi Cai, Guoting Qin, Amit Kumar
  • Publication number: 20110190623
    Abstract: 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: Application
    Filed: August 5, 2009
    Publication date: August 4, 2011
    Applicant: The Methodist Hopsital Research Institute
    Inventors: King Chuen Li, Zheng Li, Guoting Qin
  • Patent number: 7637960
    Abstract: 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: Grant
    Filed: November 15, 2006
    Date of Patent: December 29, 2009
    Assignee: University of Houston
    Inventors: Chengzhi Cai, Chi-Ming Yam, Guoting Qin, Steven Pei, Qingkai Yu
  • Publication number: 20090162424
    Abstract: 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: Application
    Filed: August 14, 2008
    Publication date: June 25, 2009
    Inventors: Chengzhi Cai, Guoting Qin, Amit Kumar
  • Publication number: 20070125160
    Abstract: 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: Application
    Filed: November 15, 2006
    Publication date: June 7, 2007
    Applicant: The University of Houston
    Inventors: Chengzhi Cai, Chin-Ming Yam, Guoting Qin, Steven Pei, Qingkai Yu