Patents by Inventor Belinda W. Y. Cheung

Belinda W. Y. Cheung 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).

  • METHODS AND COMPOSITIONS FOR APPLYING PHARMACOLOGIC AGENTS TO THE EAR
    Publication number: 20170181967
    Abstract: Methods and materials useful for applying pharmacologic agents to the ear are described. The methods involve delivering a composition that contains at least one viscogenic agent and at least one pharmacologic agent to the epidermal surface of the tympanic membrane via the ear canal. The composition is delivered to the tympanic membrane in a flowable form and, after delivery to the tympanic membrane, becomes sufficiently viscous such that the pharmacologic agent is localized against the tympanic membrane. Such compositions can be used to prophylactically and/or therapeutically treat middle and inner ear conditions, including otitis media.
    Type: Application
    Filed: March 13, 2017
    Publication date: June 29, 2017
    Inventors: Ronald J. Sawchuk, Belinda W.Y. Cheung
  • Methods and compositions for applying pharmacologic agents to the ear
    Patent number: 9592196
    Abstract: Methods and materials useful for applying pharmacologic agents to the ear are described. The methods involve delivering a composition that contains at least one viscogenic agent and at least one pharmacologic agent to the epidermal surface of the tympanic membrane via the ear canal. The composition is delivered to the tympanic membrane in a flowable form and, after delivery to the tympanic membrane, becomes sufficiently viscous such that the pharmacologic agent is localized against the tympanic membrane. Such compositions can be used to prophylactically and/or therapeutically treat middle and inner ear conditions, including otitis media.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: March 14, 2017
    Assignee: Regents of the University of Minnesota
    Inventors: Ronald J. Sawchuk, Belinda W. Y. Cheung
  • METHODS AND COMPOSITIONS FOR APPLYING PHARMACOLOGIC AGENTS TO THE EAR
    Publication number: 20140364383
    Abstract: Methods and materials useful for applying pharmacologic agents to the ear are described. The methods involve delivering a composition that contains at least one viscogenic agent and at least one pharmacologic agent to the epidermal surface of the tympanic membrane via the ear canal. The composition is delivered to the tympanic membrane in a flowable form and, after delivery to the tympanic membrane, becomes sufficiently viscous such that the pharmacologic agent is localized against the tympanic membrane. Such compositions can be used to prophylactically and/or therapeutically treat middle and inner ear conditions, including otitis media.
    Type: Application
    Filed: May 21, 2014
    Publication date: December 11, 2014
    Applicant: Regents of the University of Minnesota
    Inventors: Ronald J. Sawchuk, Belinda W.Y. Cheung
  • Methods and compositions for applying pharmacologic agents to the ear
    Patent number: 8734836
    Abstract: Methods and materials useful for applying pharmacologic agents to the ear are described. The methods involve delivering a composition that contains at least one viscogenic agent and at least one pharmacologic agent to the epidermal surface of the tympanic membrane via the ear canal. The composition is delivered to the tympanic membrane in a flowable form and, after delivery to the tympanic membrane, becomes sufficiently viscous such that the pharmacologic agent is localized against the tympanic membrane. Such compositions can be used to prophylactically and/or therapeutically treat middle and inner ear conditions, including otitis media.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: May 27, 2014
    Assignee: Regents of the University of Minnesota
    Inventors: Ronald J Sawchuk, Belinda W. Y. Cheung
  • METHODS AND COMPOSITIONS FOR APPLYING MOXIFLOXACIN TO THE EAR
    Publication number: 20120289541
    Abstract: Methods and materials useful for applying moxifloxacin to the ear are described. The methods involve delivering a composition that contains at least one viscogenic agent and moxifloxacin or a salt thereof to the epidermal surface of the tympanic membrane via the ear canal. The composition is delivered to the tympanic membrane in a flowable form and, after delivery to the tympanic membrane, becomes sufficiently viscous such that the moxifloxacin is localized against the tympanic membrane. Such compositions can be used to prophylactically and/or therapeutically treat middle and inner ear conditions, including otitis media.
    Type: Application
    Filed: January 7, 2011
    Publication date: November 15, 2012
    Applicant: NOVARTIS AG
    Inventors: Ronald J. Sawchuk, Belinda W.Y. Cheung, G. Michael Wall
  • Methods and compositions for applying pharmacologic agents to the ear
    Patent number: 7220431
    Abstract: Methods and materials useful for applying pharmacologic agents to the ear are described. The methods involve delivering a composition that contains at least one viscogenic agent and at least one pharmacologic agent to the epidermal surface of the tympanic membrane via the ear canal. The composition is delivered to the tympanic membrane in a flowable form and, after delivery to the tympanic membrane, becomes sufficiently viscous such that the pharmacologic agent is localized against the tympanic membrane. Such compositions can be used to prophylactically and/or therapeutically treat middle and inner ear conditions, including otitis media.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: May 22, 2007
    Assignee: Regents of the University of Minnesota
    Inventors: Ronald J. Sawchuk, Belinda W. Y. Cheung
  • Methods and compositions for applying pharmacologic agents to the ear
    Publication number: 20040101560
    Abstract: Methods and materials useful for applying pharmacologic agents to the ear are described. The methods involve delivering a composition that contains at least one viscogenic agent and at least one pharmacologic agent to the epidermal surface of the tympanic membrane via the ear canal. The composition is delivered to the tympanic membrane in a flowable form and, after delivery to the tympanic membrane, becomes sufficiently viscous such that the pharmacologic agent is localized against the tympanic membrane. Such compositions can be used to prophylactically and/or therapeutically treat middle and inner ear conditions, including otitis media.
    Type: Application
    Filed: November 27, 2002
    Publication date: May 27, 2004
    Inventors: Ronald J. Sawchuk, Belinda W.Y. Cheung