Patents by Inventor Suyi Niu

Suyi Niu 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: 9675562
    Abstract: The present disclosure is drawn to an adhesive peel-forming formulation for dermal delivery of a drug, comprising a drug, a solvent vehicle, and a polymer peel-forming agent. The solvent vehicle can comprise a volatile solvent system comprising one or more volatile solvent, and a non-volatile solvent system comprising two or more non-volatile solvents. The non-volatile solvent system can have a solubility with respect to the drug that is within a window of operable solubility such that the drug is deliverable at therapeutically effective rates over a sustained period of time.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: June 13, 2017
    Assignee: Crescita Therapeutics Inc.
    Inventors: Jie Zhang, Kevin S. Warner, Michael A. Ashburn, Larry D. Rigby, Suyi Niu
  • Publication number: 20150126481
    Abstract: The present disclosure is drawn to an adhesive peel-forming formulation for dermal delivery of a drug, comprising a drug, a solvent vehicle, and a polymer peel-forming agent. The solvent vehicle can comprise a volatile solvent system comprising one or more volatile solvent, and a non-volatile solvent system comprising two or more non-volatile solvents. The non-volatile solvent system can have a solubility with respect to the drug that is within a window of operable solubility such that the drug is deliverable at therapeutically effective rates over a sustained period of time.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Inventors: Jie Zhang, Kevin S. Warner, Michael A. Ashburn, Larry D. Rigby, Suyi Niu
  • Patent number: 8907153
    Abstract: The present invention is drawn to adhesive peel-forming formulations for dermal delivery of a drug. The formulation can include a drug, a solvent vehicle, and a peel-forming agent. The solvent vehicle can include a volatile solvent system having one or more volatile solvent, and a non-volatile solvent system having one or more non-volatile solvent, wherein the non-volatile solvent system has a solubility for the drug that is within a window of operable solubility for the drug such that the drug can be delivered at therapeutically effective rates over a sustained period of time. The formulation can have a viscosity suitable for application to a skin surface prior to evaporation of the volatile solvents system. When applied to the skin, the formulation can form a solidified peelable layer after at least a portion of the volatile solvent system is evaporated.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: December 9, 2014
    Assignee: Nuvo Research Inc.
    Inventors: Jie Zhang, Kevin S. Warner, Michael A. Ashburn, Larry D. Rigby, Suyi Niu
  • Publication number: 20120022158
    Abstract: Solid-forming local anesthetic formulations for pain control can include a lidocaine base and tetracaine base, polyvinyl alcohol, water, and an emulsifier. The formulation can be prepared to be in a semi-solid state prior to application to a skin surface, can form a soft solidified layer after application, and can provide pain relief when applied to a skin surface proximate a pain site.
    Type: Application
    Filed: January 14, 2011
    Publication date: January 26, 2012
    Applicant: ZARS PHARMA, INC.
    Inventors: Suyi Niu, Wade A. Hull, Jie Zhang
  • Publication number: 20080228151
    Abstract: Systems and methods for transdermal drug delivery with controlled heat are provided. Such systems can comprise a heating apparatus that includes an exothermic chemical composition, typically in the form of individual heating elements. The heating apparatus can be exposed to ambient oxygen through a cover. The cover can reduce the amount of ambient oxygen capable of contacting the chemical composition compared to when the cover is not present. In some embodiments, the heating apparatus can include more than one heating element. The systems can further include a drug-containing layer that includes a drug. The drug-containing layer can have a surface area of about 50 cm2 to about 400 cm2. The systems of the present invention can be deliver ketoprofen in an amount sufficient to produce a mean blood plasma concentration of ketoprofen in a human subject of at least 45 ng/ml within four hours after initial application of the system to a skin surface.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 18, 2008
    Inventors: Jie Zhang, Kevin S. Warner, Randal Nelson, Alan Vawdrey, Nathan Strong, Suyi Niu, Michael D. Wessman, Matthew Iverson
  • Publication number: 20050276842
    Abstract: The present invention is drawn to adhesive peel-forming formulations for dermal delivery of a drug. The formulation can include a drug, a solvent vehicle, and a peel-forming agent. The solvent vehicle can include a volatile solvent system having one or more volatile solvent, and a non-volatile solvent system having one or more non-volatile solvent, wherein the non-volatile solvent system has a solubility for the drug that is within a window of operable solubility for the drug such that the drug can be delivered at therapeutically effective rates over a sustained period of time. The formulation can have a viscosity suitable for application to a skin surface prior to evaporation of the volatile solvents system. When applied to the skin, the formulation can form a solidified peelable layer after at least a portion of the volatile solvent system is evaporated.
    Type: Application
    Filed: June 6, 2005
    Publication date: December 15, 2005
    Inventors: Jie Zhang, Kevin Warner, Michael Ashburn, Larry Rigby, Suyi Niu
  • Publication number: 20050112068
    Abstract: The present invention is drawn to systems and methods for reducing unintended use of an active ingredient, such as residual active ingredients present in spent dermal patches and peels. The system can include a dermal patch including an active ingredient and a destructive agent configured to chemically react with the active ingredient. The destructive agent can be present in a container or an absorber. In one embodiment, the absorber can be used within the container. The container can be configured to receive the dermal patch such that the active ingredient contacts the destructive agent within the container. The absorber can be configured to contact the dermal patch such that the active ingredient contacts the destructive agent of the absorber. Additionally, systems and methods for impeding the unintended use of an active ingredient, such as those present in dermal patches or peels, are also provided.
    Type: Application
    Filed: October 27, 2004
    Publication date: May 26, 2005
    Inventors: Kevin Warner, Michael Ashburn, Suyi Niu