Patents by Inventor Zhaolin Wang

Zhaolin Wang 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: 20070125375
    Abstract: A device and method for deagglomerating powder agglomerates for inhalation. The device includes an inlet connected to a chamber and to a powder source for supplying the chamber with powder agglomerates and a flow of gas that define a swirling fluid flow inside the chamber. The device also includes an outlet connected to the chamber for inhalation such that the swirling fluid flow in the chamber can exit from the chamber as a longitudinal fluid flow that is directed along a longitudinal axis of the outlet, and a secondary fluid flow that is directed away from the longitudinal axis of the outlet. A mesh in the outlet prevents powder agglomerates above a predetermined size from traversing the mesh, and reduces the secondary fluid flow relative to the longitudinal fluid flow exiting from the chamber to thereby reduce powder deposition in a mouth and throat of a user.
    Type: Application
    Filed: June 29, 2006
    Publication date: June 7, 2007
    Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA
    Inventors: Warren Finlay, Zhaolin Wang
  • Publication number: 20070110672
    Abstract: Small Molecule Metabolite Reporters (SMMRs) for use as in vivo glucose biosensors, sensor compositions, and methods of use, are described. The SMMRs include boronic acid-containing xanthene, coumarin, carbostyril and phenalene-based small molecules which are used for monitoring glucose in vivo, advantageously on the skin.
    Type: Application
    Filed: June 26, 2006
    Publication date: May 17, 2007
    Inventors: Emile Bellott, Dongsheng Bu, James Childs, Christopher Lambert, Hubert Nienaber, Shirley Shi, Zhaolin Wang, Jerome Workman, Alex Zelenchuk
  • Publication number: 20060280691
    Abstract: A powder for inhalatory aerosol delivery, the powder having: spray freeze dried liposome particles with a biologically active agent, such as an antibiotic, encapsulated within a phospholipid, and a method of producing a powder for inhalatory aerosol delivery, the method including the steps of: mixing a biologically active agent with a phospholipid to form a liquid liposome suspension; and spray freeze drying the liposome suspension to form particles of powder.
    Type: Application
    Filed: June 2, 2006
    Publication date: December 14, 2006
    Inventors: Zhaolin Wang, Helena Orszanska, Warren Finlay
  • Publication number: 20060130355
    Abstract: A method of manufacturing heat-sensitive pharmaceutical powder is disclosed. The original pharmaceutical substances are dissolved in a solution or suspended in a suspension, which is sprayed through an atomizing nozzle and frozen in a cold gas phase or liquid nitrogen atomized directly in the spray-freeze chamber or gas jacket at the same time (for cooling purposes). The particles are freeze-dried at roughly atmospheric pressure in a down-stream fluid flow with exit filter thereby to remove moisture entrapped on or inside the frozen particles. The system has applicability for forming other powders.
    Type: Application
    Filed: December 28, 2005
    Publication date: June 22, 2006
    Inventors: Zhaolin Wang, Warren Finlay
  • Patent number: 7007406
    Abstract: A method of manufacturing heat-sensitive pharmaceutical powder is disclosed. The original pharmaceutical substances are dissolved in a solution or suspended in a suspension, which is sprayed through an atomizing nozzle and frozen in a cold gas phase or liquid nitrogen atomized directly in the spray-freeze chamber or gas jacket at the same time (for cooling purposes). The particles are freeze-dried at roughly atmospheric pressure in a down-stream fluid flow with exit filter thereby to remove moisture entrapped on or inside the frozen particles. The system has applicability for forming other powders.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: March 7, 2006
    Inventors: Zhaolin Wang, Warren H. Finlay
  • Publication number: 20050160615
    Abstract: A method of manufacturing heat-sensitive pharmaceutical powder is disclosed. The original pharmaceutical substances are dissolved in a solution or suspended in a suspension, which is sprayed through an atomizing nozzle and frozen in a cold gas phase or liquid nitrogen atomized directly in the spray-freeze chamber or gas jacket at the same time (for cooling purposes). The particles are freeze-dried at roughly atmospheric pressure in a down-stream fluid flow with exit filter thereby to remove moisture entrapped on or inside the frozen particles. The system has applicability for forming other powders.
    Type: Application
    Filed: January 23, 2004
    Publication date: July 28, 2005
    Inventors: Zhaolin Wang, Warren Finlay
  • Publication number: 20040107963
    Abstract: A device and method for deagglomerating powder agglomerates for inhalation. The device includes an inlet connected to a chamber and to a powder source for supplying the chamber with powder agglomerates and a flow of gas that define a swirling fluid flow inside the chamber. The device also includes an outlet connected to the chamber for inhalation such that the swirling fluid flow in the chamber can exit from the chamber as a longitudinal fluid flow that is directed along a longitudinal axis of the outlet, and a secondary fluid flow that is directed away from the longitudinal axis of the outlet. A mesh in the outlet prevents powder agglomerates above a predetermined size from traversing the mesh, and reduces the secondary fluid flow relative to the longitudinal fluid flow exiting from the chamber to thereby reduce powder deposition in a mouth and throat of a user.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 10, 2004
    Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA
    Inventors: Warren Finlay, Zhaolin Wang
  • Patent number: 6680299
    Abstract: There are described novel 4′ substituted 16-membered macrolides and pharmaceutically acceptable compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically acceptable carrier. Also described are a method for treating bacterial infections by administering to a mammal a pharmaceutical composition containing a therapeutically-effective amount of a compound of the invention, and processes for the preparation of such compounds.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: January 20, 2004
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Ly Tam Phan, Zhaolin Wang, Tianying Jian
  • Publication number: 20030186271
    Abstract: A method of preparing a pharmaceutical composition is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles at about atmospheric pressure to produce a powder, wherein said drying is performed in the presence of vibration, internals, mechanical stirring, or a combination thereof. Another method is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles to produce a powder; wherein the atomized formulation comprises droplets having an average mean diameter of between about 35&mgr; and about 300&mgr;, and/or the powder comprises dried particles having an average mean diameter of between about 35&mgr; and about 300&mgr;.
    Type: Application
    Filed: November 19, 2002
    Publication date: October 2, 2003
    Inventors: Robin Hwang, Vincent Sullivan, Juan Huang, Zhaolin Wang, John A. Mikszta, David Montgomery, Brandi Ford, Anjana Bhuta-Wills
  • Publication number: 20030180755
    Abstract: A method of preparing a pharmaceutical composition is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles at about atmospheric pressure to produce a powder, wherein said drying is performed in the presence of vibration, internals, mechanical stirring, or a combination thereof. Another method is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles to produce a powder; wherein the atomized formulation comprises droplets having an average mean diameter of between about 35&mgr; and about 300&mgr;, and/or the powder comprises dried particles having an average mean diameter of between about 35&mgr; and about 300&mgr;.
    Type: Application
    Filed: November 19, 2002
    Publication date: September 25, 2003
    Inventors: Robin Hwang, Vincent Sullivan, Juan Huang, Zhaolin Wang, John A. Mikszta, David Montgomery, Brandi Ford, Anjana Bhuta-Wills
  • Publication number: 20030096763
    Abstract: There are described novel 4′substituted 16-membered macrolides and pharmaceutically acceptable compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically acceptable carrier.
    Type: Application
    Filed: July 27, 2001
    Publication date: May 22, 2003
    Applicant: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Ly Tam Phan, Zhaolin Wang, Tianying Jian